~'

DEPARTMENT OF THE INTERIOR

Fxar

7xia

rr K. LaxE, Secretary

UNITED STATES GEOLOGICAL SURVEY

GEoxGE OTrs Sa

~i~s

, Di

rect

or

f~

T~/IIl~TEI~.~.~ I~.E~~IJR~~S

OF THE

.~~[TNITE~ ~~

`~'T

E~~; ~~

,% ~. ..~19

16

~ ~. ~

~~:x. n. M~cassEx

J "'-

Geologist in CLsrge, Division of Miuera! Resources

}

~,::

-r,

P~tt

~ I -METALS

H. D. McCas~Y, Geologist ih Ch

arge

1

WASHINGT~I~T

1 (~OYERNMENT PR,INTINCk OFFICE

1919

€.

LSO

MINEP.AL RE~

OUR.

CEB~

1917--PAR.T Y

. ~'

C3~

t,~6

Zf}~

~Ii

.4'1

~:R~

f7~

~'PE

R.~

Y.~A

H~ A

I~TH Z

I3~T

C il

~f C

ALiFORi~'~IA.

~

Of the dee

p mines the Oro Fino Mining Co., at Auburn operated

full

time until June, when a shortage o~ lab

or compel~ec~

'x,4

71,0

92 pounds, valued at $2,

039,

608.

Tha inc

reas

e in

the copy

2,32

1,088

in

t 07 in

There

a reduc-

tion

of o

pera

tion

s fo

r the remainder of the ye

ar.

During some

was

pounds

quantity and $77

2,

valu

e.

sv~

18J,9 t 3 ton

s of ore treated, of tiv

hich

13,

879 to

ns was siliceous c

months they employed t~vo shifts a day and in others only one shift.

The mine is opened by a 600 -foot inc

line sha

ft, of tivhich 200 feet

~ana 176

,094

ton

s co

pper

ore. The cop

per ores of the

county yield

a can

cent

r~.t

e hi

gh in co

pper

but low in gold and silver. The c

were sunk during 1917; 2,4

34 feet of

dri

ftin

g was also done.

The

reduction pl

ant consists of a 10 -stamp amalgamation and con

cent

ra-

~sent to mold and silver mi

lls

rocl

uced

$51326 in

old in the

bulli~

and 335 ounces of sil

ver,

val

ued ~t $27

6, a total of $1,602. From 1

tion

mill, the con

cent

rate

s be

ing sh

ippe

d to a sme

lter

on San Fran-

Cisc

o Bay. Very little productive work was done

the Reno Con-

ore treated at concentrating pla

nts there were der

ived

12,409 tons

on

solidated mine, at Forest Hil

l. -The most pro

duct

ive de

ep mine in

concentrates y

ield

ing $25,902 in gol

d and 8

0,848 ou

nces

of s

ily

vahied at $6

6,61

9, or an a,vera,ge per ton of $ i .45 in gol

d and sil

othe

co~z

nty was the Dairy Farm cop

per mine, owned by the

Van

'Trent Minin

Co., near Lincoln, which 'was

for

The 3,7

97 ton

s of ore sent to

smelters yielded X1,511 in go

ld and 9,(

oper

~,t~

ed

nine

months and then cl

osed

down end aba

a~do

ned.

There wa,

s no reduc-

ounc

es of silver, va

lued

at $7

,448

, or a total of $8,9 9. The 7,471,(

pounds of copper was der

ived

par

tly from the

concentrates n

tion

pl

ant

at t

he mine, the c

opper. ore

s having been shipped to

smel

ters

. The V

~,Iley ~Tiew copper mine, near Lincoln, carried on

partlS~ from crude ore shi

pped

to sm

elte

rs. Of the producing min

20 were placers and 12 dee

p mines. Of the pla

cers

7 ve

re hyd

r~ti

tdevelopment and experimental work most of the

yea

r, but shipped

mine

s, 7 were dri

ft, and G were ~urf~,ce placers. The hyc

lr~.

ulic

mi

some con

cent

rate

s to

a sme

lter

. During the

yea

r a 30 -to

n ball mill

and con

cent

rato

rs were put in.

The i'i

o~ee

r Gold l

~'~i

ning

Co., at

;.pxoduced $22,3G1 in gold and sil

ver,

the drift mines $23,028, and

surface pl~;cers $~,94~, a total of $3,334. Thero was ~n iiicrense

Towle,.operatec~ ~roducti~ely during the yea

r.

~On Quartz Fla

t, near Auburn, the Lincoln gol

d dr

edge

worked

$4,2

60 in tho pr

oduc

tion

of gold from a

ll classes of pla

cer

i~zines

1917

.bench gra

vel from January to July 10,

1917

. The Pt

icific Gold Dredge

Co. dredged stream gr

avel

on DZiddle Fork of American I2,iver, near

Of the deep mines the

Last Chance cop

per property ~ tis th

e o:

producer at Ch

ilco

ot. The Five L'e

ars,

at Genesee, pro

dLic

ecl cop:

Auburn, for

eig

ht months, hal

f of the

time in vi

rgin

gra

vel.

A few

small surface pl

acer

s i.n the vi

cini

ty of Auburn were pro

duce

rs. The

ore carrying some silver but na gol

d. The Jamison l~Ziniiig Co.

,Jo

hnsv

ille, a gold mine, wa

,s com

pell

ed to cl

ose down early in Nom E

Haub dri

ft mine worliec~ ~n ancient river cha

nnel

5 mil

es from Blue

Canyon for

10 months of the

and the Lost Camp,

ber un

til pr

ovis

ion ~a~s made for

the storage of mill tailings, ~h

year

; a, mile and

a half from Blue Canyon, worked qua

rtz gr

avel

by shiicing, a,n

d ob

-is

one of th

e burdens unposed by the Government, on gala mining

Cali

forn

ia,.

This property. is opened by a shaft 16~ feet de

ep,

tamed a good manv nuggets during the s~ork.

The Eldorado ~

.nd

Plac

er Counties Gold DZininb &Power Co. dredged str

eam gr

avel

a,t

1,800 -foot drain tun

nel,

and 5,532 feet of dri

fts,

rtiises, aiacl crossc,

It is equipped wi

th a 20-stamp amalgamation m

ill. The Pha

rrthe Poverty Bar mine on Middle Fork of A

-ner

ican

River, three-

Eureka Co

rpor

atio

n, at

Johnsville, is

opened through an al

itquarters of a mil

e from Butcher Ranch. The work was continued

from January 1 to tl

ugus

t 20, on which dat

e th

e dr

edge

sunk and

~7,300 feet in le

ngth

, th

oLig

h th

ere

vas 'a

small yie

ld, only prosp~

ing vas under way in '1

917.

The mine his a 20-stamp ama

l~;a

m~ti

top

erat

ions

were not renewed until December 8. A nominal output

of gol

d was obtained from slu

icin

g at the old DZiner

~mill. The tiValker Mining Co. (co

pper

), at Portola, in

stal

led in 1

clai

m, ~,

t Co

lfax

.The Union pla

cer,

at Dutch Fla

t, and ~ number of small claims pr

o-

kanew Marcy mil

l, a Dorr thickener, an Ingersoll-Rand 9-mill

c<pressor, new bunk hou

ses and dwellings, and a

, power line 14 m

duce

c~. some gold. Small amounts of go

ld were

Golden Channel, ~,

t Emigrant Gap, and by the Darcla,nelles

procluced by the

~Forest

long

. A 100-ton fl

otat

ion pltint was als

o installed. The con

cent

r<Among

atHill, where some sma

ller

mines als

o produced. The largest produc-

~are shipped to

Utah for treatment.

the smaller

proclu<

were

. the Crown Point group, at Quincy; Empire Mines C

o.,

ing drift mine in the co

unty

was the exc

elsi

or, or Reamer Mining

~Co., at Forest Hil

l. At Iowa Hil

l, the Gle

ason

Consolidtited and

~Seneca; Sen

eca

Cons

olid

ated

Gald Mining L

o., at Seneca; I3e

(cop

per)

, Sierra, I%

ange

Copper Co., and Ruby Copper, at

T~.3=l.

other drift mines made con

side

rRbl

e pr

oduc

tion

. At Last Chance,

the fo

llow

ing drift mines were

Red Star, Dixie

vine

. The largest producing dee

p mine in th

e co

unty

was the ~n~

producers :

Queen,

~Home Tic

ket (Fr~,nl~nont), Gle

n, and Pacific Sla

b. There was some

Copper Mining Lo., at T~.

ylor

svil

le, which is opened pri

ncip

ally

edits having a total len

gth of 11,

000 feet. Two 3-c

om~~

,rtm

ent sh;

output from Chinese miners at Michigan Bhi

ff.

{were being sunk in 19

17. 'The reduction works consist of ~

. 50

0-

PLUMAS coUivTy.

conc

entr

atin

g plant at the cop

per mine and a 600-to

n unit of ~,

~mill at Superior, co

mple

ted at the last of the y

e~tir.

I3~,

11 tie

d t

The total yie

ld in metals from Plumes County in 1917 w~,

s $799,196

'mills are us

ed fox

crushing the ore and the oil flotation pro

cess

in val

ue than in 1916 and in 1916 it was X713 725 4rea,ter than

conc

entrat

ion;

concentx~,tes are

shipped to Ga

rfie

ld, Utah. The l

gneate

r19

15, which inc

reas

e re

l.Il

y shows the

marled ~ro

~vth

of the

cop

per

souri Bar, Oak Fla

t, and ~

, fe`v oth

er small placers were pro

clu

mining ind

ustr

y in

the cou

nty,

as the output of gol

d has dec

reas

ed~t Belden. At Cre

scen

t Mi

lls the pl

acer

producers were the

Gol

slightly. The quantity of ore tre

ated

in th

e co

unty

in 1917 was 8 995

Key and Great Div

ide.

There were also some small placers pros

tons

larger than in 19

16.

'ing at Gr

eenv

ille

; and at Jo

hnsv

ille

the

Con

tine

nt.~

,l mine and

The pro

duct

ion of gold from deep mines was $ r ~ ?39 ; the silver

amounted to 90,222 fin

e ou

nces

, valued at $1

4,34

3, and the cop

per to

_~

l,~,

`~

~'~;

~ DEPARTMENT OF THE INTERIOR

r

ALBERT B. FALL, Sec

reta

ryf.

f ~'~

'

'j ,'<;

^ UNITED STATES GEOLOGICAL SURVEY

j GEORGE OTIS SMITN_? Di

rect

or~

R

r lVIINER.AL l~ES~~CJRG~S

sOF THF.

r ~

UNITED STATES

1918

G. F. LOUGHLIN

Geol

ogis

t in

Charge, Division of Mineral Resources

E ~'

PaRT I—METALS

G. F. LOUGHLIN, Geologist in Charge

~4 ~~ phi

~

~ 1~

a-~ .~- ~

c,~'a _

y am°

~

oPASI3INGTON

!3 (14 F. R.NMF.NT PR.TNTTNl~ hFFTf!F.

~t3S

4S4

MIiQERt1L ItESOURC~S~ 191S—pAR,T I.

GOLDS SI

Lti'

ER~

COPPEIi~~ LEADS

Ai~TD ZINC IN CALITORATIA. ~i

its mine bei

ng vir

tual

ly closed down.. T

lie mine is opened by t~v

oadits 3 00

(? and 1600 fee

t lo

n and about 3 miles. of drifts.

It has

~ g?

i.

rend the surfaco placers ~5,3~9, a total of $2

8,35

0 from placers.

The

~ ~

20-stamp amalgamation and concentration mill and a 2-ton cya

nide

~ ~a~s ~. d

ecre

ase of

$24,866 in the production of gold from t

ill class

of placer mi

nes in 191

8.plant fo

r co

ncen

trat

es..

~1~ng the pla

cers

the Pac

ific

Gold Dredge Co. operated pr

oduc

-S

Of the dee

p mines of

the

cou

ntg only a nom

inal

c{u~,ntity of

~o

was produced by the Jac

kson

gro

up, at Cre

scen

t Mi

lls.

al

t Gr

eetively for

sig

months of 19

18 on North Fork of American Riv

er, 10

mile

s from Auburn. A number of sm

all and C

hinese mines

~ ei

lle the only dee

p pr

oduc

er was the Dro

ege,

~-h

ich ran from J

ti:

were

doin

g more or

Iess pla

ceri

ng in the

vici

nity

of Auburn. At Blue

15 tc December 31 with pe

riod

s of

inactivity. The mine has a 2

stamp amalgamation

a,nd con

cent

rati

on mill. The Jam

ison

Mini

Canyon the Aiken ~

,nd Lo

st Cax

rip

placers operated. At But

cher

Ranch the pri

ncip

al pro

duce

r was the

El Dorado &Placer Cou

ntie

sCc~. owns the pri

ncip

al mine at Jo

hnsv

ille

, wh

ich

is ope

ned by

Gold l~Z

inin

g &Power Co.

, wh

ich

operates a

~ dredge at th

at point.

~ert

icR.

l shaft 165 fee

t sl

eep ~,

nd an 180

0 -fo

ot drain tun

nel,

wit

h 5,

5feet of drifts, raises, and cro

sscu

ts.

The mine has

~, 2

0-st

n.mp

amp

The Christmas Hil

l is also a sm

all placer producer th

ere.

In and

near

Dutch Fla

t are the Ha

clse

l, Chin Mow, ~h Hee; Nic

hols

, Ho

l-ga

mati

on mill, but

owing to sh

orta

ge of laUor only 10 st~

in.p

s of

t:

land, i02ichigan ~ Wisconsin, tiVon~ On Wo, and se~

-era

1 ot

her pro-

~ mill mer

e kept dropping 188

clays. The t

itiT

all~

er Mining Co

.,Po

rtol

~,, has on

e of

the

lar

gest

cop

per mines in the cou

nty and pi

diuctive s

mall

placers,

~,nd

ne

ar Emigrant Gap t

here t

iver

e so

iree

plac

ers making sma

ll outputs. In end aro

uxrd

I~ ore

st Hill the l~.rgest

duces considerable. ~

olcl ~.n

d silver in ad

diti

on to

tl~e copper. T.

mine is eq

uipp

ed with

~,n 80-ton fl

otat

ion pr

oces

s ~l

~,nt

for sou

seproducer is the Re

~.me

r Mining Co. (excelsior.)

Othe

rs in the same

vicinity are the ~Ii

Jim, Bal

timo

re C~nS on (ta

ilin

gs),

Delorsi, De

Maria; Hadig, Mahoney, 1G

Iayf

lo~e

r, ParaLgon, ~~ah Hop, ~,

nd a few

tr~,

tion

of the ores, the co

ncen

trat

es being sold to

the In.

tern

atio

nSmelting Co.

, of To

oele

, Uta

h. The Seneca

Consolicl~,tecl Mining C

smaller on

es.

The total gold ou

tput

of the Fo

rest

Hill sQ

ctio

n in

1918

was $44

,402

. At Iowa Dil

l are the Gl

easo

n Consolidated Drift

(White Lily) mide a con

side

rabl

e output of gold R

.t Sen

eca

~,nd

smal

l qu

anti

ty came from the Gold Le2f, at Sprint Cx~

,zde

n. T

Beetle and Beetle Extension mines (TrRsk Copper 11l

inin

g Co

.),

and Lowell mi

nes.

The pri

ncip

al pla

cer ne

ar I:~,s~ Cl

i~nc

e is

owned

by the Red Star Mining Lo. Other placers ne

ar Las

t Chance are the

Tayl

ors~

~ill

e, wer

e ~o

~era

ted eight months in 1918, ~,ncl ~, 15 -

ton, co

cent

rati

on mil

l was put up dur

ing th

e ye

ar.

The products we

re se

Dixie Queen, Glen, Kavanaugh, and Pacific

. Slab Consolidated mi

nes.

The productive pl

acer

s at 112ichi~an Bluff ar

e the Fii~ Gun, Dooley,

to the Garfield sm

elte

r for tre

atme

nt.

The' angels Copper Mini:

Co., at Tay

lors

vill

e, was, in 1918, the largest cop

per-

proc

luci

~g mi

Gorman Consolidated, Hard Climb, and a number of smaller placers

in Cal

ifor

nia.

VP

ith 't

he exc

epti

on of a few hundred tons of cri~

~ror

ked in

the

creeks during the

rainy season. There ire a few

. small

ore shipped to a sme

lter

, all the copper proci.ucecl was from fiotR.ti

plac

ers worked near Rocklin and Yankee Jim.

conc

entr

ates

. The mine has two o

il flo

tati

on c

once

ntrt

itio

n mil

ti with a

~ to

tal ca

paci

ty of 1,100 ton

s a dad, and the concentrates

aPZUMAs Cov1~rTY.

'shipped to the Cxarfield sme

lter

, Utah. These con

cent

rR,t

es averag

The tot

al yield in a

ll met~Is from Plumas County in 1

.913. was

27 per cent co

pper

, with hi h v

~lties in fold a

ncl_

sil

ver.

Pall ~

~tube mil

ls are used for crashing tha ore

. l~

Zine

~,n

cl plant ~ve

se o

$800,294 ~;r

e~,t

er in ~Ta

lue than in 1917, and in 1917 it

vc~,s X7

99,1

96gr

e~i- .er than in 1916, which inc

reas

e re

~,Il

.y sho

`vs rho marked growth

eratecl continuously throughout the

year. The rroperty is de~-elop

of the

copper mining ind

ustr

y in the county., The qua

a~ti

t~ of ore

mainly through tunnels and drifts, but two z-ertic~,l slza£ts

a.re

~t]

being sunk. The Ruby and I

+ iel

clin

g corper mines are a

lso

bei

trea

ted in

the coLmty in 1918 was 112,~J20 tans larger than in 1917.

The production of gold from deep .mi

nes was ~~6

,&57

; the silver

worked pro

duct

ivel

y at Taylorsville.

~mountec3 to 156,589 fine oun

ces,

val

ued

~,t X1

56,5

89; and the. copper

Twenty-se~-en placer mines were productive in Plums Coti.nty

1918, of which 5 were hydraulic, 8 d

rift

, and 14 surface

to 11,191,743 pounds, slued at $2

,76~

,3G1

. The inc

reas

e in the cop-

per was 3,720,6 1 pounds, ~2.ltied

~,t X7

24,7

53.

There were 302,893

plac

egt Belden a

re the

Ellis, Caribou, Indian H

ill, and Pioneer dr

tons of ore

treated, of which 9,067 ton

s were siliceous ore and 293

,826

mines and several small mines were worked at I31~.irsden. The C<

mus and G

'rra

nt Divide are at Crescent Mil

ls and the R

.ecl

IZ~

avi:

tons copper ore

. The ore sent to fold ~,

nd s

ilver

mill

s produced

$5$,

122 in gold in the bul

lion

and 362 ounces of silver, val

ued

a,t

Cont

inen

tal,

and Stand2rd Mining Co. are

at Johns >il

le. Z

$362, ~

, to

tal of $58,484. From the ore treated at concentrating

plum

a~s Grass Valley Mining Co., near L~,

Porte, was drilling to fi

the main gra

vel channel but obt

aine

d a smell qua

ntit

y of gold fry

plan

ts the

re were derived 22,

086 tons of con

cent

rate

s, yie

ldin

g $3

7,74

-4

~in gold and 149,568 otmces of si

lver

valued at $

149,568,. or an

tail

ings

from t

incient river-bed mining. The St.

Louis is a l

niz

average per ton of $8.

48 in gold and sil

ver.

The 1,484 tons of.oro

producer near L~,

Por

te, and the

re are other smaller mi

nes.

Z

New York, Old Rti

ther

fort

~, and Little Annie f

ire small placers

sent to

smel

ters

yie

lded

$991 in go

ld and 6

,659 ounces of s

ilve

r,va

lued

at X6,

659,

or a tot

al of ~7,

6~0.

11,191,743 polmds of

Meadow Valley, but water for washing gravel

vas scarce and oz

.The

coppex w

a,s de

rive

d mainly from the flo

tati

on con

cent

rate

s and to

enough was av~

,ila

k~le

for ~

, few weeks' washing. Tre Schley ~

,nc

few oth

er mines were operated at Quincy. The River Le~

,sin

~ C

a l

ess degree from crude copper ore

shipped to smelters. Of the

producing mines 27 were placers ~,n

d 12 were deep. Of the

pla

cers

Sene

ca. Development C

o., ~iedener, rin

d Yankee Bar (or Deg

5 were hyd

raul

ic mines, 8 were drift, and 14 were surf~,ee pl

acer

s.m~e-small oit

tpti

ts of gold at Sen

eca,

, ~,

s did the Spring Garden a

Buckhorn, at,

Spring Garden, and the Tv~elvemile Creek mine,

The hy

clr~,ulic mines produced ~T8,402 in gold, the dri

ft mines $4,589.

m.,,

.,;~

324,298

tons vas

treated by $otation

concentration

~,n~l

ti -fielded

~~20,126 tons of concentrates, from ~llich $40,210 in'~old, 155,807

ou~.ces of silver, and 10,826,125 pounds of copper .were recovered.

The concentrates therefore were valued at x110.72 a ton.

.There was

also 726 tons

of copper ore sent d

irect to smelters, which c

~~,rried

X412 in

gold, 904 ounces of silver, and 3

3,733 pounds o

f copper,

havuig a total value of .61.09 a ton.

Of the.deep mines of the county t~hich reported. production: 8 «ere

gold mines. and 6 copper mines. Five hi draulic xnmes, 6 drift mines,

acid 10 surface ~l~,cers reported operations.

H~;draulic mznes produced

$6,843;.drift mines, $6,584; ~,nd sur-

:.face placers, X3,075 of the $ 6,502 in gold recovered by placer mines.

The production of gold by placer mines m I919 was $11,848 less than

the production in 1918..

Of the deep mines of I'luma,s Courrt~% the Plinco Copper Miiung ~Co.

made oul3r a small shipment of copper ore.

The angels Copper Min-

€ing

Co., at Engelrnine, is no~~ the most productive copper-mining

enterprise in California, and is equipped 'with a 1,200-ton concentra-

.Lion or flotation

rn.ill.

The mine is developed by x,937 feet of shifts

and raises, and 27,561 feet of drifts.

The detTelopment work in 1919

consisted of 5,824 feet of drifts, 1,248 feet of raise,, 255 feet of shift,

anc~ 4,64

feet o

f di~,inond

drilling,

The copper

concentrates are

shipped

to the Garfield Smelting (~o., Sa1t Lake City, Utah. Con-

sider~,ble silver

a.ncl gold ~,re dexlvecl from the copper ores in addition

to t

he copper content. The Pilot

old. mine, at

Genesee, and the

Droeae, at Greenville, are small pro~ucei~s. The Jamison Mining Co.

and the Plumas-Eureka Corporation

were the

only producers at

Johnsville.

Both r~~ere run for part time in, 1919. The 'G

~''alker Min-

iizg Co., at Portola, has ~, 200 -ton flotation mill.. An extensive Reri~,l

tramway has recently been completed at this property for.transport-

ing ore. The Trask &Coffer Minuig Co. operated the 1VLoonlight mine,

nee~r Engeluune. It his a 5-stamp concentration mill, and electric

pover and new compressors were

installed during the year. Some

little production

S~T~s made by the Ruby and Little Joe claims, hear

Enaelmine, in 1919.

The copper ore, carrying bold and silver also,

was shipped to the Garfield smelter.

~There were no extensive placer -minim operations in Plumas County

zn 1919, but a number of drift, hydraulic, find sluicing properties pro-

}duced iu t

i small wax. These were'~;11e Pioneer, at Belden; Cadmus

~~r.~.

d Great Di~ride, tit~Crescent MiY'Is; Glacier ~,iid Sing Si~ey, at Green-

zille; Continental, Red F

a~,vule, and S

t~inda~rd, at

Jol~nsville; Brie

fLrai el, Plumas Grass Valln;r, and Smitli Fork Miniz~ Co., at La Porte;

Cxold

T~Iounta,in

~,nd Old ~

Zut~zerford, ~

,t l

~~e~,dow Valley; Grizzle

Creeli, at Portola;

~Tillo~v Creek 14Tii~ina Co.,

~,t Quincy; S nnyside

e-

and Yankee Bar, at Seneca; and Santa Cruz, at Spring Gai 'en.

SACRAMENTO COUNTY.

Sacramento t~ as fourth in rink amonb California. fo

ld-producuig

counties in

7.919, fLnd

its

total output of

gold was ~I,71~,193, or

~i~3,46~J more than in 1918. Tie total yield of gold and silver was

~1,7I9,~69, or ~2p,108 more than in 1918.

t~.lmQst the entire gold

output of the county v

c as derived from dredging operations in the

vicinity of Folsom. There was only. one deep mice in the county,

with a nominal output of ;old and silver. Of the .placers there was

one drift miner all the others being dredging mines: The IV stomas

Co. of

California o

perated 9 dredffes in the American River f

ield

and the Indiana Gold Dredging G oo. 1 dredge near I

~iichigan Bar.

The dredge output of X1;772,705 in gold in 1919 v as X22,426 more

than in I918.

Considerable platinum jvas recovered in these dredg-

ink; .o

perations. ~ The Natom~a,s Co. of California handled 1g,394,000

cubic ~~rds of gr~~el during 191 .and used 2,520 pounds of

quicli-

silver yfor

axnalg:~ma,tion. There

are two rock-crushing

plants at

Fair Oa1~s, where the cobbles; screened out, are utilized for building

roads.

SAN BERNARDINO COUNTY.

The total value of the. metals produced in San Bernardino County

by the 27 deep mines (no p

lacers) reporting output in 1919 ~

~va,s

X520,075, as compared with X496,691 i

n 1918.

This was an i

n-crease of

?3,384.

Tlie ore treated amounted to 31,748 tons, which

yielded 1;923.83 fne ounces of gold, valued at X39,769; silver, 381,890

ounces,

v€~lued

at X427,717; copper, .252,024 pounds,

valued

air

X46,876; and lead, 107,800, founds, valued. at $5,713.

Of the. 1

,923.83 ounces of gold produced, 1,

~36.5Fi ounces.. was ob-

tained from siliceous ores, 76,92 ounces from copper ores, and I0.35

.ounces from lead

ores.

The silver derived from siliceous ores was

361,914 ounces, from copper ores, 6,148 ounces, anc~ from lead ores,

11,76

ounces.

Of the total output of copper, 247,57 pounds was.

derived from copper .ores; 3,313 pounds from lead

ores, and 1,104

pounds from siliceous ores. More lead was derived from ores classed

as copper (59,700 pounds) than from. st

rictly lead

ores, which car-

ried 46,800 pounds, and 1,300 pounds was obtained by rtreating the

ores classed as siliceous.

`The ore from San Bernardino County treated in 1919.was 31,74

tons, ,of which

28,856 tons was siliceous ore (22,103 tons

strictly

silver ore), 607 tons copper ore, and 2,285 tons lead oxe.

The silice-

ous

silver ore (22, 03 tons} carried X21 in gold, 40,8Q9 ounces of

.silver, and 148 pounds of copper, with a total value of $45,755, or

an average of X2:07 ~: ton.

The 6, r 53 tons of siliceous gold-

silver ore

carried

X37,944 in -g

old; 321,165 ounces

of s

ilver, 956 pounds of

copper, and 1,300 pounds of lead, having a 't

otal value of

9 397,895,

or X58.92

a. ton.

The 's

mall quantity •

of copper

ore

treated (607

tons) carried X1,590 in gold, x,148 ounces of silver, 247,547 pounds

of copper, and 59,7.00 pounds of lead, with a total value of X59,924,

or an a~verage of X98.72 a toi~. The lead

ores (2;255 tons) carried

X214 in gold, 11,7fi~ ounces of silver, 3,3x3 pounds of copper, and

4$,800 pounds of lead, having a combined value of $16,501, or an

avera;e of $7.22 a ton.

Gold and silver mills treated 2,784 tons of ore produced in San

Bern~rdin~ County in

1919, recovering ~12,3~2 in g

old and 215

ounces of

silver as

bullion, a recovery of $2.5~ a ton. A t

otril of

65 tons ~f concentrates w~.s produced from 2,160 tons of ore, which

carried

~I,4.93 in gold, 10, 16 ounces of silver, and 15,800 pounds

of lead, showing a total value of X14,108, or X217.04 a ton of con-

centrates. Sme.Iters received 3,39? tons of ore in 1919, which c

~,r-

riecl X22,031 in 'gold, 337,449 ounces of

silver, 252,024 pounds.

of

copper, and 92,000 founds of lead, having a combined value

of~~51,72f, or an average value of $132.98 a ton.

` DEPARTMENT OF THE INTERIOR

AtsExT B. FaL7,, Secretary

UNITED STATES GEOLOGI.CAv SURVEY

GEoxGE OTzs SMiTx, Director

1

T~T

aT

- ~T

i

~SLL \ ~~11.A~ ~~~~ V ~~

OF THE

~~'

c~, ,w,

~:

~~ ~~2 0

;,~ ~~ 1,, ~,

s ~` ~ t '

~~

_ ~ , _

G. F, LOUGHLIN

r, ~'

Geologist in Charge, Division c£ _1~Iineral Rex~~irces

t.

P~tT I—METALS

G. F. LOUGHLIN, Ge

ologist in Charge

" ~~ ~~

a~ j,; ;~ ~~

~

~ _ ~v

. ~ ~

d~Q ~~~o~

~S ' '!

!''

-WASHINGTON

*~

(~O'PERNMENT PRINTINq OE`EICE

■ s

_:t• '

1922

~i

J "f $

MIN~I%AL RI:SOURCES~ 1~J2(~—P~I~T Z.

The Oro Fino 1~S

inin

~ Co

., 1lubnrn, operated its plant only one shi

ft~ dap in 1920, til

thou

g~ occ

asio

nall

y the 10

-Gtt

imp amalgamation and

concentration. mil

l was run two shi

fts.

Litt

le development work w~;

sdone dur

ing th

e ye

ar.

,[~ small

qu~,

ntit

y of

ore was produced by

ti'Vil~iam Sch

indl

er at his ar

sine

7 miles east of Auburn, and some gol

d~~,s praduced at the Rising Sun mane at Colfax.

Sm~,l.l qu

an.t

,iti

es of

gold were obtained from the Dry H

ill ~ I31

ue Jay Consolidated,

Johnny Rafael, and Snow Bird, in

the Forest Hill

section. The

Pion

eer Gold 14lines Co.

, ~,

t Towle, did ver

y little work in 1920, though

a small output was made.

The Pac

ific

Gold Dred~*e Co. ope

rate

d one dredge for nine months

on 1lmerican River 3 miles from Applegate

. Very lit

tle gold cftme

from five months' work on the Haub d

rift

mine, at Blue Canon,

but con

side

rabl

e go

ld ~v~,s won by p~nnin~ or sl

uici

ng b~ J. Sc

hill

inge

ron Sear River ~,n

d ~ulc~ies 7 mil

es from Colfax. The producinq dri

ftmines at 1llichi~an L'h

if~

vere the Alb

onos

, Bigelo`v; Glenn, an~ List

Chance; ~,n

d a little pla

cer gold v

as obtained a~ Towle; Yankee Jim,

Gold

. Run, Dutch Flat, I{'

ores

t Hi

ll, an

d. IoRT~. Hi

ll

PLUPliAS COUNTY.

The total ~al

~~e of all metals produced in Plumas County in 1920

vas

X52,017,025, or

X6262,360 less than in 19

19.

The pro

duct

ion of

1920 was c

~ist

ribu

tec~

as follows: Gol

d, 4,9

38.9

4 fi

ne oun

ces;

sil

ver,

T39,

792 fi

ne oun

ces;

co

per, 9,5

79,1

05 pounds. .Twelve deep mines

produced .x,86,423 in go d, 139

,688

fine ou

nces

of

silv

er, and cop

per

valued a.t X1,

762,

555,

~ total val

ue from the deep mines of X2

,001

,238

.The six

hyd

raul

ic mines yielded 5~~,376 in gold, f

ive dr

ift mines X65,886

and fiv

e su

rfac

e pl

acer

s X1

,412

, a total of ~1

5,G7

4, or X828 les

s than in

1919

. .The gl~,c

er silver was v~,

Iued

at X6113. The output of co

pper

in

1920 ~v~s 9,579, 05 potmds, ~,s

compared wit

h 14,859,885 pounds in

1919

.In 1920 the ore

tre

ated

was 289,856 tans, as compared wit

h 32

8,43

1to

ns in 19

19.

It com

pris

ed 282

,004

ton

s of cop

per or

e and 7,8

52.

tons of siliceous ore. The sil

iceo

us ore car

ried

<~59,767 in

gold and

X549 in si

lver

, a total of ~~60,316, or

an aver~;ge Qf X7.68 f

l ton. The

copier ore

. h~,d a total val

ue of 81,940,922, or

an average of X6.88

a.to

n. Al

l th

e siliceous or

e was treated at gold and silver mills. Of

the co

pper

ore 2 1,994 tons was treated by flotation concentration

and yielded 16,750. ton

s of concentrates. The 10 tons of

cop

per

ore.

sent to a smelter yie

lded

~2~ in gold, 341 oun

ces of

sil

ver,

and 1,699

pounds of co

pper

.The Engels Copper Mining Co.

, ai

r Engelmine, was by far the largest

producer ~n th

e county, as it is

the largest cop

per pr

oduc

er in th

eSt

ate.

Nearly 9,000 feet of development work was done dur

ing x.920

and operations were continuous. The company has a 1,2

00-ton o

ilflotation pl

ant,

the

'con

cent

rate

s from which ~,re sold to the Garfield

Smel

ting

Co., Ga

rfie

ld, Utah. The Ruby ~tinin~ Co., ne

ar Eng

elmi

ne,

has ~ 5-stamp wet concentrating m

ill,. ~

,nd shipped the co

pper

con

-ce

ntra

tes to

Ga~

rfie

la.

~1 small output of gold v as made by the Long

Vall

ey i1

~Ii.

rin~

Co: at G.reen~ille, «here it

has a 5-stamp mil

l. So

brer

o .

& Co., le

ssee

s on the old Jamison mine, . a~t Joh

nsvi

lle,

obt

~ine

c~ con

-si

der~

;ble

gold in

sto

pin~

fin

d ran some developmeat d

rift

s. Only

about two months' a~c

tice

ope

rati

on t

ivas

carried on by the Plumas-

GOLD

S SILST~R~ COPPEr.~ .LE

E1ll

~ AND LING IN GALlrorrrz~. 179

Eure

l:€~

Corporation, at Johnsville. The pro

perl

y is

equipped wit

h a

20-s

t~ti

nzp mi

ll.

Tlie

~T~,lker dining Co., at Siring Garden, equipped

with

a flo

tati

on plant of 200 to 225 ton

s capacity is th

.e second largest

copper pro

duce

r in the county. It h~,s a,

n ~,dit 4,900 feet long and ft

225 -fo

ot shaft.

In 1920 t'a

e ac

lit was com

plet

ed a

cid much dri

ftin

gdone in the mine.

The mine and mil

l were closed October 25,

and

arra

ngem

ents

R>ere made for con

soli

dati

ng the mine a,n

d mi

ll. camps

at the mil

l camp; all

ope

rati

ons mill be conducted through the adi

tinstead of by aer

ial trz~m from the

mine. The con

cent

rate

s from the

flot

atio

n pl~,nt are slugged to the International Sm

elti

ng Co., To

oele

,Utah. The Apex mine, ~,

t Quincy, made some production, using its

6 -ton Gibson m

ill for amalgamation.. A smell output of go

ld was

also made by the Crown Point group and Oversight mines, at the

same pla

ce.

The ~VVhite Lil

y none of the Seneca, Co

nsol

idat

ed Mining

Co., at Seneca, h~

,d ~

, good production. The Trask &Coffer Mininb

Co. operated

the

Beet

le, Be

etle

Extension, and Mo

onli

ght co

pper

mines, at Paton, and shipped

the

concentrates to

the

Garfield

smelter. The ore

is cr

ushe

d in a 5-stamp concentr~,tin~

mill

, wi

thtable and van

ners

.No e

xten

sive

placer -mining o

pera

tion

s have been c

2rri

ed on in

Plumas County for sev

eral

pegs, but the

re are a number of small

prod

ucer

s. In 1920 the

se were the small mines near Blaixsden and

.Greenville; Lincoln, Continental, and Nelson Creek

~,t Jo

hns-

ville; Wood Estate Co. (Li

ttle

Grass Val

ley,

t~uigley, and Sweet Oil

Digg

ings

) ; Smith Fork Mining Co. and other small

mine

s, .a,t La

Port

e; Butte Bar d

rift

, ?~

Zoun

t ~l

r~,r

at hyd

raul

ic, anal Li$tle Annie

sluicing, at ~

1~e~dotiv

Valley; Grizzly

Cree

l: hyd

raul

ic,

a,t Port~ola;

Yt~n

kee Bar, at Se

neca

; ~,nd Jenkins and Twelvemile Bar d

rift

, at

Twain.

SACRA1bdENTO COUNTY.

'

Sacramento was fourth in rank among C

~.lifornia gol

d -pr

oduc

ing

coun

ties

in 1920, en

tire

ly by reason of the activities in the dredging

industry.

The total gold output ~f the county wRs X

1,57

5,03

3, or

~1~9,160 les

s than in 19

19.

hll the fold eYc

ept .~2~9 ~u

as derived

from dredging operations in the

vici

nity

of Folsom. The Na~omas

Co. of

C~tl

it~o

rnia

, ope

rate

d ei

ght dredges

~.t N~

tor~

~,s,

in

tl~e

American

Rive

r fi

eld.

The Ind

iana

llredalllb Co., a

,t DZi

chig

an B

luff

, ceased

oper

atio

ns and t

he c

or~por~tion was d

isso

lved

December 29 1919

but a l

ittl

e "c

lown-up' yield

~-as

obtained in

1~J

20.

Cons

ider

able

plat

inum

~ra,s

21so re

co` ered

in these

gold-dredging

oper

atio

ns.

Only one deep mine s

~~..s ~orke~. in the cou

nty-

in 1920; a,n

d it

s go

ldoutput v

as nom

ina~

L SAN BERNAR,DINO COUNTY.

The total value of the metals produced in Sfln Bernardino County

from the

19 dee

p. gold and silver mines and 4 lead mines rep

orti

ngoutput in 1920 zva

s X1,298,261, or. $

778,

1 6 more than in 19

19.

This

is a lar

ger in

crea

se thin tha

t of ~

a.ny other county in the State and

places San Ber

nard

ino among the

counties of C

~lif

erni

~, producing .

more than a m

illi

on d

ollars a

nnua

lly.

It w

~,s

c3ue wholly to the

operations of th

e Ca

lifo

rnia

Rand S

ilve

r (Inc.), the

largest

silv

ermine of th

e State., tivhich w as fir

st productive in 191

9. The inc

reas

e,`

in val

ue of szlver alone in San Ber

nard

ino County in

t A2t

1. A

.~ nnm_

DEPARTMENT OF THE INTERIOR

Hu$ERT WoxK, Secretary

UNITED STATES GEOLOGICAL SURVEY

GEoxcE OTzs SNtiTx, Director

IVIII~TEI~.A.L ~~ESaIJR.~ES

OF THE

UNITED S

'~A.TES

.~

1921

~~~~~~r

s..'..

~

~~^:

t

j c.~-..~`

G. F. LOUGFILIN

Geologist in Chnrse. Division of ?1'Iineral Resources

~~^~j' fi f

PAx.T I-METALS

G. F. LOUGHLIN, Geologist in Ch ~cge

V_

_. ~Y

~

.

~Y L/

~~~a ~

OOO

WASHINGTON

(~OVERNI~SEI~T PRINTING OFFICE

1924

1g6

MI'v

F.Ii

AI P7,SOURCES~ 19~I--PAR.T I

.

Sm~Il cruantities of fo

ld were rec

over

ed from the Jer

sey Cow mine,

~t Rough and heady ;the Pen

rose

, at Washington; and the Gold

B12g, near Emigrant tra

p. the Gold Bug mine use

s a 5-ton arr

a,st

re.

The Quaker Hill

ctr'

ft mine, owned by the Quaker Hil

l Gold Mining

Corp

or~;

tion

, is

in the Quaker ~3ill district, near Nevada Cit

y. ' The

You Bet and Red Dog, on Greenhorn a,n

d Steep Hollow cre

eks;

in

the You Bet district, is worked by drifting. This pro

pert

y zs

bei

ngde

velo

ped,

and €

~ d~

,m is being constructed fo

r hy

drau

lick

ing.

Some

small mines Were worked by dri

ftin

g and sT,

ucin

g a,

t North Bloomfield,

Gras

s Valley, and North Columbia: At the Lucky S

trik

e, near

VPas

h ~ffta~, the~ gold. nug

gets

mined come. from cre

vice

s in

the bed-

rock

. The Yos

t Bet mine of the California P1a

,cer

Mines Co., at You

Bet, is worked by the dri

ftin

g system,• Qnd the Liberty Hil

l mine,

nn Beer River, is

a, hydraulic pro

pert

y, ope

rate

d by VPi

llia

m Maguire.

PLACER COUNTY.

The. total va

lue of met

als produced in Placer County in 1921 was

$133

,536

, of which ~13

2,4G

8 was in gold ,and $1

,068

in

silv

er,

~, de-

crease in total va

?ue,

as compared wit

h 1920, of

$19,730.. Of the

34

mines rep

orti

ng pro

duct

ion 1 was a dredge, 16 vQe

re drift nni

nes 8

surf

ace

plac

ers,

and 9 deep -go

ld mi

nes.

The p

rodu

ctio

n of

gold

from deep mines tiv

as X47

,928

and from placer mines ~8~

,540

, a total .

decr

ease

of

X18,620,. compared, wit

h 19

20.

Deep .mines produced

$587 in. silver and p

lacer mines - $481, a dec

reas

e in t

otal silver of

$1,1

10.

The ore mined in Placer County.amounted to 7, 712 tons, al

l sil

iceo

usand. alI t

reated at, gold .and s

ilver

mill

s.. Of the gol

d .and s

ilver

reco

vere

d in

miLuig X46,915 in go

ld and X505 in si

lver

were saved as

bullion., and X1,013 mgold ~,n

d X82 in silver were recovered from the

19 ton

s of

conce

ntra

tes .treated.

Of the gol

d won by p

lace

rs X

24,8

84 came from Y5 drift mines,

.$13

,971

from 8 slu

icin

g mi

nes,

~,n

d X45,685 from dredging op

erat

ions

.A~ the Car

o Fino iGl

imng

Co.

's pro

pert

y, ~,t

Auburn, pra

ctic

ally

. all

tivo

rk done in .1

921 was development ~To

rk, and b

arren

rocl~ was

stru

cb.-

The ia.tention was to sulk to a lower level, but on the dea

thof

the manager the mue w~,

s cl

osed

... The Ris

ing Sun at Colfax and ,

the Dry Dil

l and Biue Jay, at,Forestlxill, yielded smt

ill quantities of

gold

. ~t the Jobn.ny Rafael mine 350 feet of

tun

nel was .run

. The

goTd came from pockets and seams. Very l

ittle was done at the

Reno Consolidated mi

nes,

at For

esth

ill,

or at the Dan

iel

We~ister,

Champion, ~,n

d New Hope, at Michigan Bluff.

The .Pioneer Gold

Mines Co., at Towle, the only deep -mine producer of note in the

coun

ty, di

d not be~ain op

erat

ing the mine and 20 -stamp amalgamating

mill until August, and only stoping was done in the mine. The Pacific

Gold Dredging Co. op

eratecY a,

,dre

dge on the. North Fork of American

Rive

r, near App

legate, for

eig

ht and one

-hal

f mo

nths

..:

Cons

ider

able

plac

er gol

d vas bought in Auburn from small mines in. that se

ctio

nof

the cou

nty.

TY

ie Haub mine dri

fted

in' an anc

ient

riv

er bed near

Blue

- Canyon for

about six

months, .and small quantities. of gold

came from the Lost Camp and oth

er mines around Blue Canyon.

The Ac

acia

, American Hi

ll, Baltimore Canyon, and ot

her

small

mules around For

esth

ill produced some gold. The Paragon drift

mine in Volcano Canyon, 3t~th ini

nin~

dis

tric

t, recovered some gold

GOLDS SI

LVEI

i~ COPPER; LEADS A~ P 7iN('•—CALiIP ORiv I~

~.

1 ~"

~j

in. the co

urse

of development work: The Juno, the New Zea

land

,and the

Jup

iter

mind of the 112eGe~chin Pl

acer Mining Co.,

at. Iotiv~

Hill, were p

roductive

drif

t mi

nes.

The Glenn Consolidated Gold

Mines, operati

ng on Duncan Creek, Last Chance dis

tric

t, Michigan

Blirt~ post of

fice

, owns the

most productive dr

ift mine in th

e county

~,nd worked it the

entire yea

r. The Last Chsznce and other small

drif

t mi

nes.

at Michigan B

luff w

ere.. pro

duct

ive.

Reeves c~ Rogers,

under agreement wit

h the Roseville Placer ~~ining Co. ~t Ros

evil

le,

worked cemented gravel from an anc

ient

.ri

ver 'bed

for about two

months, crushing the gravel in a Beers mill, with~ plates

a.nd

sluice

boxes. A l

ittl

e gold came from the Dorer, in Humbug Canyon,

near Towle, and other mines in th

at section.

PLUMAS COUNTY.

The total val

ue of al

l metals produced in Plu

mx~s

County in 1921 was

$1,x

92,5

02, or

X224;523 le

ss than in 19

20.

The pro

duct

ion w~ dis

-tr

ibut

ed as follows: Gol

d, $12

7,14

8; si

lver

, $1

71,0

90; copper; ~1;~9

4,-

264.

Ten. deep mines produced $8

9,98

4 in gold, X17

0,91

3 m sil

ver;

and 1

1,5$3,441 pounds of co

pper

. The 2 hyd

raul

ic mines yie

lded

X2,6

46 m g

old, ]:3

dri

ft mines $32

,269

, and 13 sur

face

or

sluicing

mines. X2,

249,

a total of 9

537,

164,

or X

21,490 more than in

1920

.Tb.e. placer s

ilver was .valued at X177.

The output of copper was

2,04,336 pounds more than in 19

20.

In 1921 the ore

treated in th

e county amounted to 321,723 tons,

as compared wit

h 28

9,85

6 tons in

1.92

0. It com

pris

ed ,306,037 to

nsof

copper ore and 15,686 t

ons

of s

ilic

eous

ore.

The :sil

iceo

us ore

.mil

led

carr

ied X5

9,10

0 in fold end ~G36 in

silv

er, or

an a

vera,gc of

$3.81 a ton

. The copper or

e ha

cl a val

ue of X1

,694

,009

, or

an ave

rage

of X5.

54 a ton

. Of the

copper or

e 30

6,02

4 to

ns was treated by fl

ott~tion

concentration and yie

lded

19,850 tons of co

ncen

trat

es.-

The 13 ton

s~

of cop

per.

ore sent to

a. smeltery~elded X21 in gold, 96

488 in

sil

ver,

and

~ 2,

614 pounds of copper, valued at $337.

the Engels Copper 1Vl

inin

g Co., at Engelsnine, was much the

largest

producer in the co

tmty

, ~s

it is the

largest copper producer in the

btate. The mines are dev

elop

ed by adits and shafts, and 8,637 feet

of :development work (

incl

ude ~ diamond-

dril

l footages) was done

duri

ng 192

1. The p

rope

rty

is equ

ippe

d a ith

m, 1,2

00-t

on concen-

tr~,tin~ p

lant

, using the

oil-flotation process, and t

he concentrates

are slugped to the sme

lter

at Ga

rfie

ld, Utah.. In the Engels mine 90

per cent of th

e work done was development work p

repar~.tory to

stoping. In 't

he Superior mine only such development work was

done €

~s was needed to pr

oduc

e, the b eate

st qua

ntit

y of ore ~

,t the .

.least ex

pens

e. Op

erat

ions

continued

throughout the

year

. The

306,

024 tons of or

e .h

eate

d averaged 222 per cen

t of copper, the

actu

al ext

ract

ion being 84

.48 per ce

nt..

The average ess

ay value of

the concentrates was x

,29 a ton.

During the

yea

r the or

e reserves

have been inc

reas

ed t

o 3,

342,

118 tons, or

47 .per. cen

t, even a

fter

dedu

ctin

g the ore sent to the mi

ll, an

d. the expense of sh

utti

ng down

has been avoided. ~ reduction" in op

erat

ing costs of 3.49 ce

nts a

pound of copper has been effected. The net cost of cop

per production

was 14.

69 cents a pound. The net receipts from con

cent

rate

s deliv-

ered to end in transit to

the smelter, to

geth

er wit

h ot

her e~rninb ,

was X1,

037,

388.

97.

The total ope

rati

ng exp

ense

was ~1~Ocg$~c5JJ.34,

renon~ .. „~c~ot.._..__.._oi

~.~$

MINERAL P]~SOUPCES~ 1921—PAR,T I.

corn

, srLv~T,, t~~ri~rr,, i.r~i~, n~v a

i:~T

c~—c

~~~r

,rro

t~~T

r.~.

} ~

~

Ieav

ing

~,n op

erat

ing deficit of X51

,166

:37.

Reserves for

depreciation

~,nd lia

bili

ty for

compensation, less pro

fit and los

s, December 31,

1920,

Rnd stock premium bring the

tot

al deficit up to ~6

119,

61G7

3 fo

r th

eye

ar.

Capi

tal ex

pend

itur

es for

1921. amounted to X2

75; 468.86.

The mine of th

e Gr

uss Mining Co.

, at

Gen

esee

, is

ope

ned by a 400

-foot ver

tica

l shaft and .1

,000

feet of

dri

fts.

The development work

in 1921 co

nsis

ted of driftuig, stoping, ~,nd open -cu

t and quarry work.

There is

~, 10 -stamp amalgamation and con

cent

rati

on m

ill on the

property and ~, ball mi

ll w

~,s added c

luri

n~ the

yea

r. The Long

Vall

ey Mining Co.; ~,t

Gre

envi

lle,

ran some drifts, cut

s, and trenches.

There is

~; 5-sump mil

l on this propert

Lessees on the mines of

the Jamison Mining Co.

, at Joh

nsvi

lle ~ow owned by the

Plumas-

Eureka Annex Mining Co

.), mined co

nsid

erab

le good or

e. The

Plumes -Eu

reka

, at

Joh

nsvi

lle,

is on

e of

the oldest of the dee

p mines

of the Sta

te tend ~~s worked the

ent

ire ye

ar, €~

ltho

ugh the 20-stamp

amalgAmRtion and co

ncen

trat

ion

mill w

~.s run only for

19 days.

The pr~

oper

ty is opened by an edi

t 7,

300 fe

et in

le~n~ gth. The Trask &

Coff

er Mining Co. did

not np erat

e th

e Beetle or Mo

onli

ght mi

nes,

at

Paxton, although it shipped ~

t little ore. Lessees on the White Lil

ymine of the Seneca Consolidated Gold Mining Co.

, at Sen

eca,

took

out a few thousand do

llar

s in fold.

No especially large placer-mzning'enterprises are now being car

ried

on in Plumes County. The C€zribou, Hetty Jan

e, 'h

~ippe, and oth

ersm

all placers we

re producers near Be

lden

; and the Cadmus, at

Crescent

Mill

s, was worked abo

ut a month. Pl

acer

s at

Gre

envi

lle yi

elde

d a

few thousand do

llar

s, and th

e Continental,

- Grendona, a

n:d Red,

V4hit~e, and Blue we

re producers near Jo

hnsv

ille

. On the

South Fork

of Fea

ther

River, 10 mil

es nor

th of La Por

te, the Fe

athe

r Fork Gold

.Gra

vel Co. worked i

ts d

rift

mine for

fif

e months of underground

opor

atio

ns.

The Maxine dri

ft mine Yea

s pr

oduc

ti~e

~,t

La Por

te.

At

Meadow Val

ley th

e ol

d Ru

ther

ford

made a small pro

duct

ion,

wit

h50 days wat

er for

gro

und sl

uici

ng On Lit

tle Grizzly Cr

eek,

10 miles

from G

enesee, the

Litt

le G

rizzly Pla

cers

hyd

raul

icke

d fo

r a sho

rt-t

ime.

The Aus

tral

ia Placer Mi

xung

Co. did

hydraulic min

ing on its

clai

m near Quin_cy ,and 12 mil

es from there the

Willow Creek Mi

ning

Co. worked the

New Hope min

e, sl

tuci

ng wit

h as

elf-

acti

ng reservoir.

At Quincy the

Crown Point, Schley, and o

ther

sma

ll mines were

worked, some by the "shooter" sys

tem.

The Independent, Sunny-

side, and Yankee Bar wer

e pr

oduc

ers near Sen

eca.

Some pla

cer gold

was tak

en out a~t Spring Garden: The Twe

lvem

ile Bar, on the

eas

tbr

anch

of the North Fork of Feather River, near Twain, w~,

s dr

ifte

d.

SACRAMENTO COUNTY.

Sacramento was fou

rth in rank among Cal

ifor

nia gold-p

rodu

cing

coun

ties

in 1921, this hig

h rank being entir

ely due to the extensive

dyed

g~~n

gact

ivit

ies.

The totalgoldoutputofthecountywas$1,690,662,.

which i

s an inc

reas

e ov

er 1920 0£

X115

,629

. The . Natomas iCo, of ,

California ope

rate

d seven dredges in what is known as the Folsom

fiel

d for the en

tire

year..

The total material dr

edge

d was 21,253,288

cubi

c ya

rds,

res

ulti

ng in a pro

fit of

X29

2,52

9. It

is estimated

that.

the remaining proved dredb ng gro

und

of the

company, at present

costs, con

tain

s 125,600,000 cu

bic ya

rds,

suf

fici

ent fo

r 10 yea

rs' op-

eration. Co

nsid

erab

le platinum and osm

irid

ium was obt

aine

d du

ring

the dr

edgi

ng ope

rati

ons.

r1

t several. poi

nts ~,

rowi

d Folsom ~

,nci Blue

R~~i

zio small

gti~,ntitzc~s of

gold were obt

aine

d in

dri

ft a

nc~

Glt,

ice

mini

ng by ind

ivid

ual miners.

'The

silver out ,u

t o:f th

e county w~,

svalued ~,t

X5,

254,

and the

tot

al Sield in gold ~n~ si

lver

~~~.s ~1

,695

,9T.

6.

B9N S~PI~TARDLI~7<J COUI~TTY.

The tot

al val

ue of

all met~z~ls pro

duce

d in

S2.n Bernardino Count-

in .1921 w

~,s $3;43

1,36

6, or

~2,133,~.05 mare t~ ~n the

total in 1920.

This

is ~ larger in

crea

se in va

lue thin is sho~s-n by ~,n

y other cnunty

in the Sta

te and brims S~,n Bernardino to se

cond

r~,

nl~,

Yuba bei~~g

first. This inc

reas

e is

due amost ent

irel

3T. to the

Iar~e sil

ver output

of tho

California, Hand Sil

ver (I

nc.)

. That mine ana

l the Grady-~ili-

Jones le

ase on Uranium No. 5 cla

im of the same com

~~,n

p are th

emost productive

silv

er properties in the

~t~,te.

Tire s

tiv~

~r d

.erivc~d

-from siliceous ores aznomited to 3,205,110 fin

e ou

nces

, front cop~~er

ores 62 ounces, and from lea

d ores 5, 30 oun

ces.

The inc

rc~s

e in the

valu

e of

silver al

one in fan Bernardino County ~

v~s

.~~:~,997,7~.9.

There ~r~,s als

o a g~,

in of ~1

3~,3

73 in gi

ld. ~.nd ~~1

,827

in cop~t~z•.

T}an

lead

pr

oduc

tion, ho

weve

r, fel

l ofd 49,?Ol pounds zn

qu~n

tit,

~ . ~~nd

X4,8

14 in value. Deep mines yie

lded

y62

17,1

75 in gold, ~3

,210

,7~2

~n

silv

er, 15,702 pounds of copPe~_r, vt

~lue

d €~

t X2

,026

, and 23,694 po

unc?

sof

lea

d, val

ued

~,t X1

,066

. No zin

c was pro

duce

d in

the county i

.n192 L

The nre

from San Bernardino Co

up#~

p tr

~~,i

;ed in 1921

~v~,

s 45,839

tons from 30 dee

p mi

nes,

of wtuch 45,

582 to

ns was sil

iceo

us, 36 ton

sco

pper

ore,

~,nd 221 tun

s Lead or

e. O~ the

siliceous or

e 35

,506

tons

came i'r

om 12 sil

ver mines and yi

elde

d 9~3,19~,Oa4 in s

iltrer

and 9

184

,246 in

gold

. Four lead mines pro

duce

d 22

1 to

ns of or

e,wh

ich

y~_i

elde

d 23

,054

pounds of le

ad,

9~5;53Q in

silv

er, ~,nd

~~ 145 in

fold.

Ther

e ir

e more sil

ver mines in Sin Bernardino county th:

~nin

any oth

er county in the St

ate,

end t

h.e most pro

duct

z~ e are netiv

mines ope

ned ~~thin the

1P.st .fe

w ye

ars.

Gold and sil

ver mi

lls ~re~ted 4,

rG5 to

ns of are, yielding ~2G,479 in

gold a.nd X2,300 in si

lver

as bu

llio

n; and 480 Lops of

ore w~,

s ~e

n~ to

.concentrating mi

lls and pro

duce

d 17 to~

zs of co

ncen

trat

es, from which

was recovered X124 i~

z gold, X2,226 in sil

ver,

~,nd 4,

313 pounds of lead.

Crude o

re shipped to sme

lter

s amounted to 38,593 ton

s, yie

ldin

gX185,608 in gold, 3,

2QQ,

~37 ou

nces

of si

lver

, 15

,702

pounds of co

pier

,.and ]

.9,381 pounds of le

ad.

Of old tai

ling

s 2,

C01 to

ns was tre

ated

,y~

ield

ing X1

,964

in gold and $5,

339 in sil

ver.

The ('

xatevra~,' a ne~

v mine which m~:

de ins fir

st pra

duct

ion in 292

1,is ha~If a mile from Fremont Peak and 14 mil

es i~om Atoli~,, in the

Fremont district. The pro

pert

y is in pr

oces

s of fu

rt~ier devel.opmen.t.

Roth Bro

s. worked m'11 cI

e~i~

-ttp

~,nd old ta

ilin

gs from the

old

. ~ gdad-

Chase mi

ne, near Bnssto~~v, by the c~ crud

e pr

oces

s. File Gold Dol

lar,

at Camp Bt~Idv, near. the head of dry Gul

ch, a m 1e nor

t:h of Cold-

v~ater Cre

ek, had its ore

crushed in.

a Gib

son mill.

The sha

ft in th

emine is .only- 150 fee

t de

ep. Some lead-ailver ore

.~c

~~,s

shi

pped

Uy

J. L. Cx~rden from B~i

~d~d

: Smx.)1 s}i

ipm.

ents

~*core m~,~~e try

les

sees

of the Dutch Sil

ver mine end ~ fez

v other cl

a~m.

s near Cim

a,.

Silv

eror

e was treat

ed b~ the

D~gget Red

ucti

on ~; 14

lini

.n~;

Co. ~zt

D~,

g~et

,end a

, few ether mines the

re, in

clud

ing th

e ~l

meri

c~n,

Ont

~gri

o, IZ,ed

Jacket-K

ing,

and Sio

ux, pr

oduc

ed smell qua

ntit

ies

cif si

lver

. The

Sioux mine used a tes

t cy

anid

e pl

ant fa

r tt

ico months. A liL

t~e si

lver

,:R

DEPARTMENT OF THE INTERIOR

FInbert Work, Secretary

ti ,~ ~~`a ~

II. 3. GEOLOGICAL SURVEY

~~"

George Otis Smith, Director

~'k h

~~w.

~~~.

~~i ~~`

1VIIl~TER.~.~ RESOt.Jl~GES

OF THE

~~UNITED S

T.A.T~

~. ~;~ ~~r1'

'~

_1922

e~~

~~

4{

~P

~~~.~

G. F. LOUGHLIN

~s

`"~' ~ Geologist in CLarge, Division of Mineral Reaourcee

~~

~ P

i ~-~

~, ~~

PAx,T I—METALS

G. F. LOUGHLIN, Ge

ologist in Charge

R4

F. _

.

.~a

1

;~

.

~~_

i~

~~~

~~i'C OFTh,

isz

~;

~

t`~

a

~~a

z~p

°pEc E~~ t~

•

~~

~~~~

;.:

y

a ~F

-

-. ~.

~~r'

WASHINGTON

~~~

GOVERPTMF.NT PRSNTING OFFICE

1925

4~$

MINERAL ItESOURCES~ 1922PART I.

1921.

The 5 drift mines in the county produced 82 per cent, and the

`'4 hydraulic mines and 13 surface mines each about 9 per cent of the

gold produced by lacer mines. The largest, producer of placer gold

was the Feather ~ork drift mine, near La, Porte, but a fair produc-

tion was.made at the Little Grizzly, near Geneses; the Slate Creek

hydraulic, wear La Pore; and the Lucky S. placer, near Taylorsville.

There was 438,836 tons of .o

re mined in Plumas County, of which

434,961 tons was copper ore and 3,875 tons was siliceous gold. ore.

The metal content of this ore vcas 6,866.26 ounces of gold, 296,764

ounces of

silver, and 20,677,771 pounds of copper, having a total

value of ~3,230,20L

This is an increase of 84 per cent, as compared

with 1921, and is attributable entirely to the greater production of

the Engels and Walker capper mines.

Practically

all .the copper ore was concentrated, and the gold ore

was treated at amalgamation mills without concentration.

Bullion

saved at gold mills in 1922 contained 1,37820 ounces of gold and 186

'ounces of

silver.

There were 39,167 tons of copper concentrates

produced, which carried 5,207.64 .

ounces of_ gold, 285;283 ounces of

silver, and 19;

90,598 pounds of copper. The smelting ore yielded

;280.42 ounces of gold, 11,295 ounces of silver, and 787,173 pounds

of copper.

A small amount of gold was .taken from t

l~e Santa Rosa placer,

near Clio At the 2-stamp mill of the 'GPonder mine, near Blairsden,

~ small amount of gold ore was milled. Near crescent Mills a small

amount of

bullion was saved at the Silent Friend mine, but opera-

tions at the Green Mountain mine were discontinued. At Engelmine

the Engels and Superior copper mines were actively worked through

out, the year. The 1,400-ton flotation mill ha,ndle~, 362,959 tons of

ore, fr

oYn which 24;652 tons of concentrates were made and shipped.

The gtoss value of gold, si

tve~, and copper recovered was $2,116,055,

and the net cost per pound of copper was 1221 cents.¢ At the :f

in-

gels mine the lower or No: ZO tunnel was d

riven

4,.100 feet to cut

tke ore .body 500 feet below thelowest levels previously opened. '

,Atotal. of 7 574 feet of drifting and 2,478 feet of diamond drilling was

j~done anc~ 1 900 feet of rases were put through the ore body. to de-

a

GOLDS SILVER. COPPER

S LEADS AND ZI1~C IN CALIFOI~•NIA. X29

the

- Feathex Fork Cold G

r~,Fel Co. The Marine drift mine and the

La Plante and Slate Creek hydraulic mines, near La Porte., mere also

worked. Near Pilot Peak the Pilot Peak, tiVillow Creelz, and New

Rope drift mines were under develop meat, a.nd some gold

~cas re-

covered, The Pioneer and Sunnysido drift mines, at Seneca, ~rere

productive, but no d

eep~ mines in

this section ~

=ere worked. The

Iron Dyke mine, near

Ts,ylorsville, was reopened under lease a

.nd,

developed for ~ fetiv months. A sma11 ~,mouat of placer gold was

sold to local storekee~ perr.

At TwQin old ~cas recovered from bars of

the Middle Fork of ][+'eather Ricer.

e Viralker mine, 8 miles north

of Spring Garden, vc

as a large producer of copper ore.

Psrt of the ore

was treated in a 225-ton flotation mill and part sent direct '

to Utah

smelter. '

A considerable body of chalcop~r~te ore h

~,s

be.en devel-

oped during the last two dears of operation:

8AC2tAMENTO COUrTTY.

The gold end silver produced in Sacramento Count~y clime largely

from the seven gold dredges operated by the Na,tomas Co. of California,

at Natoma, though some placer bullion wa,s obtained by small sluice

operations m the streams near Folsom. The p

lacer

bullion

pro-

duced in 1922 contained G5,342.50 ounces of gold and 3,392 ounces of

silver, valued at $1,354,141; a decrease of $341,775 as compered with

1921.

According to the annual report of the Natoma,s Co., the net operat-

ing

profit for the year was X457,400, which vcas considerably larger

than in 1921, owuzg to lover power and material costs' and to im-

provement in the recovery from the ground worked. The No. 1

dredge at l~Tatoma finished i

ts p

rofitable ground on September, 13

and was dismantled. The company estimates that

there remains

to be dug in the Natoma f

ield abort 110,000,000 cubic yards of

paying gravel, which would indicate a life of seven or eight years

at the present rRte of extraction.

S.ANT BERNARDINO COUNTY. .

velop the stopes.

The ore reserves of the two mines are estimated

cent

5 Of t

his

'~ There mere 22 deep mines in operasion in San Bernardino County

at 2,952,766 tons; carrying ,2 per

or more copper

amount X18,521 tons is broken and 1,637,445 tons is blocked

out..

in 1922, as compared with 3b deep mines and 3 placers i

n. 1921.

The production. of the county was 64,3 1 tons of ore, containing

This estimate does not include any ore below the tenth level of the

the

has been demonstrated

6,082.0$ ounces of gold, 2,374,948 ounces of silver, 13,190 pounds of

'the

Engels mine, though

existence

of ore

by d

rilling. The Lucky S. placer, between Engelmine and Tay-

copper, and 12,320 pounds of lead, valued a,t X2,503,134.

value

of metals produced by deep and placer mines in 1921 was X3,431,366.

lorsville, was worked through the season by its new owners. The

hydraulic

Genesee, was in

vThe production of a]I metals in I922 vas less than in 1921, but the

Little Grizzly Creek

mine, near

opera-

chief loss was in silver, the output of which was 835,758 ounces less.

tion. A sma11 quantity of placer gold was vFon by sluice operations

~ Qf the ore mined 92 per cent came from the silver mines ~

,t Ii,~nds-

in the vicinity of Greenville. The Jamison mine, at Johns~ille, was

October,

the

f burg, and phis ore carried nearly 85 per cent of the gold and about 99

worked by Sobrero & Co., under lease until

when

prop-

;; per cent of the silver produced in the county.

The 64,381 tons of ore

erty reverted to the Plumas-Eureka .Annex. Mining Co. A test run

was made at the Plumas-Eureka during the course of development

mined included 4,453 tons of dry gold ore, 59,839 tons of dry silver

ore, 40 tons of lead ore, 48 tons of copper ore, ftnd 1 ton of copper-

work, and some placer gold was saved frost the streams in the ~icin-

lead ore.

sty. A large~ production of fold was made as a result of drift opera-"

South Fork of Feather River 10 miles from La Porte, by .

:Gold' and silver m

ills hancUed 4,650 tons

of o

re ~,nd recovered

791.08

tions an the

ounces of gold and 4,203 ounces of silver;. most of tse silver

'+Engels Co per Mining Co. Ninth Ann. Rcpt., for year ending Dec. 31, 1922, p. B.

6Idem,p.l~r,

WB.S recoveiecl 'by t

-wo cy-~,mde

pItL2ItS a

,nd

the- bulk

of t

l~e

bO1C~. f

l,t

four s~m.algamation.mills. Besides the

ore, 300 tons of old t

ailings

o~.,~ ~_~ ,. _2~

DEPARTMENT OF T$E INTERIOB

Hnbert Work, Secretary

U. S. GEOLOGICAL SURVEY

g George Otis Smith, Di

rector

0

1VIINERAL RESOURCES

OF TEiE

UNITEJD STATES

1923

tF. J. gATZ

Geol

ogis

t in Charge, Di

vision of Min

eral

Res

onrc

ce

x~~,

~,,~

~ ,;;,

~ ~,s

;~

~.t~

.'.r

~~`-

:" ,~

PnRT I—METALS

a.~N i''-"~F.

UNITED STATES

GQVERNMENT PRINTING OFFICE

WASHINGTON

X927

CIO

MINERAL RESOURCES ].~23—PART I

the

plazit. By inc

reas

ing the percentage of copper in the sm

elti

ngch

arge

to a poi

nt not higher than the ave

rage

of past shi

pmen

tsto

custom smelters,

it i

s po

ssib

le, ac

cord

ing

to th

e company, to

incr

ease

the

capacity of the pre

sent

plant to nearly 4,000,000 pounds

a month. The p

lant embodies advanced i

deas

in sm

elte

r design

and is the

firs

t new smelter constructed in the United States si

nce

the United Verde Ext

ensi

on Mining Co.'s plant was put in operation

in July; 191

8.

CALIFORNL4

In 1923 California produced 27

,042

,835 pounds of

copper and

ranked e

ight

h among the copper-producing States of the co

untr

y,wi

th 1.88 pe

r cent of the .total production. From the

beg

inni

ng of

.op

erat

ions

m 1862 through 1923 California's pr

oduc

tion

has bee

n843,668,318 pQuads of copper, ,

or 2.60 de

r cent of the total pr

oduc

-ti

on for

the

United States. Thus C

alifornia ra

nks sixth among the

copp

er-p

rodu

cing

States in total production. Although the

Plumes

dist

rict

is now the largest producer in

the Sta

te, both the Shasta

and Foothill districts have made lar

ger total outputs.

Shas

ta district.—The

total pr

oduc

tion

of c

oppe

r in the

Shasta

dist

rict

, inclusive of

1923, has been 579

,131

,000

pounds, 1.78 per ce

ntof

the total for

the country.

The Mammoth mine and sme

lter

of th

e United States Smelting,

Refining & Mining Co.

, .wh

ich have been idle fo

r .s

ever

al years, were

prep

ared

in 1923 for

a res

unpt

ion of opera

tion

s. One furnace was

st~,rtod lat

e in

November. Up to the end of th

e ye

ar 13,443 to

nsof ore was sme

lted

. Additional geologic study of the mine sug

gest

edce

rtai

n ex

plor

ator

y work, which i

s in -progress, and t

he company

hopes it will uncover add

itio

nal ore.

Early in the fall of 1923 the Mountain Copper Ca (I.

td.)

resumed

oper

atio

ns at it

s mine and sme

lter

and produced 907 ton

s of

bli

ster

copp

er.

Late

r in the

year, owing to the low pri

ce of copper, op

era-

tion

s were dis

cont

inue

d. .The company bel

ieve

s th

at res

umpt

ion of

oper

atio

ns, when it oc

curs

again, will not be nearly so exp

ensi

ve or

take so long as it did

in 19

23.

Foot

hill

dis

tric

t.—T

he Foo

thil

l district did

not produce any copper

in 1921 or 1922 but yielded 1,5

98,7

26 pounds in 1923, most of w]uch

was from Calaveras County.

Plu.

mccs

dis

tric

t.—T

he Engels Copper Mining Co., which is.by far

the

largest

producer in the Plumes district, produced 14,450,243

pounds of copier, 165,441 ou

nces

.of si

lver

, and 2,5

92 oun

ces of gold

in .19

23.

This

compares wi

th a copper pr

oduc

tion

'fo

r 1922 of

14,075,947 pounds. The net

operating cost was 11.

35 cen

ts a pound,

or 12.

93 cen

ts after adding reserves for depreciation, _compensation

insu

ranc

e, and amortization of development cha

rges

, as shown below,

compared wit

h 11 and 12.21 cents in 19

22, an increase for 1923 of

0.72. cent a pound: The inc

reas

e is due. to

decr

ease

d credits on

acco

unt of the drop in th

e pr

ice of silver and inc

reas

ed cha

rges

for

depreciation and amo

rtiz

atio

n of

development cos

ts.

ICOPPER

221

Cost

of Producing copper by Engels Copper _Mi

ning

Co.

, 19%3

Per

Tota

l pound of

copper

ce~a

ls~

Oze on cars at Engeis----------------------------------------------------------

$i, 078

, 802.80

7.46

5ft

Frei

ght and smelting ch

arge

s___

____

___

____

____

____

____

____

____

_ g7

35, G79. C~

3Credit val

ue of gold and sil

ver re

cove

red

_ __

____

____

____

____

____

__

1i4,

844.77

560,

834.

86

3.8311

Operating and marketing cost __

____

____

_ __

_ __

____

__

____

____

____

___

1, 63

9, 63

7. fi

0 11.34f,7

----

-

Cost of depreciation and insurance, re

serv

es, and de~ciopment _

____

____

____

___

2~, ~J35

. 62

1.58

43

i 1, 8G3,

573.28

12 X310

The company rep

orts

that the No. 10 level project is ne~rin~; com-

pletion,

- and tha

t ex

cell

ent bornite or

e has been dis

clos

ed on this le

vel,

assuring a material in

crea

se in proved ore res

erve

s when tho inter-

medi

ate le

vel~

are ope

ned.

Experimental work car

ried

on throu;h-

out the year in an eff

ort to

improve ope

rs~t

ing pr

acti

co resulted in

an increase of 1.5

57 por cent in the per

cent

age extraction of copper

in the mil

l over that in 192

2.

Oper

adio

nsat Superior

mill, 19 8

Ore milled___________________________short tons__

331, 420

Average heads_________________________perce

nt__

2.1347

Average tails_____________________________do____

2459

Actual extraction_________________________do____

88.737

Concentrates produced__________________pounds__

49,838,787

Average content of co

ncen

trat

es _ _ _ _ _ _ _ _ _p

er cent_ _

23. 994

Copper produced________________________pounds__

'14,450,243

Silver produced_________________________ounces__

165,444.76

Gold produced____________________________do____

2,591.81

Ore reserves of

Engels and Superior mines, December ~T, 1923, in s)tort tons

Blocked ore

Mine

ProUable

Tota

l

In pla

ceBroken in

ore

scopes

Engels-------------------------------------------------

8i3~243

233,375

E46,8W

1,153,41E

Superior---------------------------------------------..

4tB,

SuO

149,

797

250,004

Si6,G4i

1, 29

0, 09

335

3,17

2S9fi, 300

2, 57

0, 06:

•Estimate inc

lude

s ore in pillars.

-The company sta

tes th

at .the above estimate o

f or

e reserves i

~ba

sed on a technical interpretation of the con

diti

ons

a,s found in the

mines December 31, 1923, and should not be construed to mean tha

tit inc

lude

s all ore, both probable and p

ossible, that

is con

tain

ed i

nth

e mi

nes.

The mines of the ~P

alke

r Mi

ning

. Co., a subsidia,r~ of th

e An~;cond~

Copper Mining Co., were operated thmubhout the

yea

r, and 16f ,95~

tons of ore was bro

ken.

The new con

cent

rato

r, wit

h a capacity

of750 ton

s of ore a day, com

plet

ed dur

ing the ye

ar and put in op

erat

ion

in November, treated 87,

041 tons of ore averaging 4.

123 pe

r ce

nt of

copper, from which 14,566.64 ton

s of con

cent

rate

s averaging 22.78

69th Congress, lst Session

-

-

-

House Document No. 114—Part 1

DEPARTMENT OF COMMERCE

HERBERT HOOVER, SscxETaxx

BUREAU OF MINES

SCOTT TURNER, DrxBrrox

llll

ll~E

RAL RESOURCES

OF THE

UNI'

I`lE

D STATES

,.~~ ~~

~ 19 2 4

,:.. ~Y° ~*

~~~ }~ ~

~`

~ FRANK J. KATZ

Ckie° Engineer, Division of Mineral Resouroea and Statiatia

PART I-METALS

UNITED STATES

GOVERNMENT PRINTING OFFICE

WASHINGTON

~o~v

`~~g

MINERAL RESOTJRCES~ 1984—PAST I

Mini

ii Co. at Michigan' Bluff worked a

ll the year Rnd ree

quip

ped

the

mill

wit

h heavy stemps. Po

cket

s were extracted at th

e Annie

Laur

ie, Adventure, Real Jacket, ~,nd Johnny Rafael pr

oper

ties

.

PLUMAS COUIITTY

The l

argest 'pr

arlu

cing

placer mine in Plumes County was t

heMarguerite dr~.ft, out from La Porte, though sev

eral

small hydraulic.

mines in the

dist

rict

~ve

re ope

rate

d. The Lit

tle

Grizzly hy

drau

lic

near Genesee -had w

~;t~er for

oily a ver

y sh

ort run. The Sunniside

Fnd Yankee Bar dri

ft mines near Seneca, were o~e

r~,t

ed.

The Twelve

~VIi

le Bar a,

nd French Ravine sl

uice

pr

oper

ties

ne

ar Twain we

reop

erat

ed, ~,nd a number of sn

iper

s were at work on Spa

nish

Creek,

Indian Cre

el:,

and Fea

ther

Riv

er.

The Engels Copper Co. cur

tail

ed output dur

ing th

e fi

rst part of th

edear dur

i.n~

t-he complet~on of the No. 10 tun

nel of

the

Engels mine.

1ldditions were made t

o the

flotation

plan

t at the Sup

erio

r mi

lt,

,and co

nsid

er~b

?e deg>elopment was accomplished at the

Superior.

mine. During the ye

ar .the pr

oduc

tion

of .t

he Engels Copper Co.

Baas 12,870,111 ponds of co

pper

, 154,

427.

oun

ces of silver, and

. 2,

593'

ounces of gold, recovered from 350,445 1~o

ns of ore milled. In 192

4,.

reco

very

at the Su

peri

or mil

l was 89 per

cent. The ann

ual.

rep

ort of

the company say

s that o~-erating costs for co

pper

produced in

192

4,with gold end silver cr

edit

ed, were 11.

30 cents a pound, as compare$'

with

11.

3 ce

nts a pound in 19

23.

During the yea

r a total of 6,

480

feed

of de

iTel

opme

nt ~c:~s cox~pleted

~zt the Engels. mine, about one-

third of which was iu th

e No. 10 tun

nel, and 4,6

57 feet of work in

the Superior mine, most of which :vas on the

l~To. 1 and No. 2 lev

els.

Ore r

eserti

•es ca

rryi

ng 2 tpe

r ce

nt or more in co

pper

are given a

s2,849,97 ton

s at the end of 19

24, two-thirds of

w]:i

ich ar

e at the

Engels mine end on

e-th

ird

at the Sup erio

r. Le

ss than a million

tons

of the total is estimated as probable ore

.The Walker mine, north of Sp

ring

y Garden, oper

ated

at fu

ll cap

acit

y..

The new f

lotntior. mi

ll tre

ated

205

,903

ton

s of ore, averaging 3.27

per cent cop

;~er

, ~,

nd made a 96 per cen

t re

cove

ry.

The output of

the mine was 12,

659,

429 pounds of co

pper

, 21

7,76

4 ou

nces

of si

lver

,~.nd 8,216.40 ou

nces

of go

ld, ac

cord

ing to

the

annual rep

ort of the

1`sn

acor

d~, Copper Minim Co.

The Ja.misan mine a

.t Joh

nsvi

lle was worked until Sep

temi

ier by

~ `l

esse

es;

litt

le de~elopmeet'work was don

e, but sev

eral

hundred tons.

of ore tiv

as milled. This vas the largest de

ep-gold mine in op

erat

ion

in the

county.

The Gold Letif

Consolidated 'mine near Spring

C ar~l

en built ~,

smell cy guide mi

ll to ha

zsdt

e ta

ilin

gs from the bane mil

l.A few ton

s of cop

per ore was shi

pped from mines near

Taylorsville,

j and the Standard mines nea

r Greenville were dev

elop

ed further, but

no pro

duct

ion was rep

orte

d.

RIVERSI~3E COUNTY

;: '~

'he iV

lels

ta mine out from Mecca shipped lead ore, and the

Overton

mines. near 'Vidal some copper ore during the yea

r. It

is reported

that the

Overtan Mining Co. will er

ect a 50-ton co

ncen

trat

ing

mill

.a

GOLD SILVEB~ COPPERY LEADS

AI~i

D ZING IN CALIFORNIA

`~],f

secRer~a~NTo com~r~Y

The Natoma,s Co. of California operated six dr

ed¢e

s ne

tir i~

Ta,t

omduring 1924.. "

The No. 10 dred;e fi

nish

ed its ground in June.; It R

Tfl.

dism

antl

ed, re

buil

t tit a new location, and began di~nin~ again earl

in 192

5. The output of gold by Sacramento County dre

dges

~-a

cons

ider

ably

less, because for

hal

f the ye

ar only five boa

ts «e.

re i

~operation. The annual rep

ort

of the company say

s t~

.2t the

giro

s~

return of the gr

avel

s worked at Natoms ~~s 3.6

6 ce

nt's

a yard, 0.2

~~

cent L

ess than in 1923, but ope

rati

ng ,co

sts

ctec

re~,

sed 0.

07 cent

;yard a

lso. Se

veral hundred d

olla

rs in gold va

s obtained by s

m.~,

]operators in the Blue Rt~

vine

digbings, 3 mil

es above Folsom, any

at va

riou

s poinFs a

long the American Ri

ver between I+'

olso

m ~,n~

Sacramento.

a SAN. B~RRTA~LDINO COUNTY

In the

Calico district the

Olympus Gold Mines Co. reb

uilt

i#s mate

system, er

ecte

d a 50-ton Denver q

u~~artz mi

ll, and made ~

, test run

The 1V~

ulc~

,hv br

othe

rs worked the

Homestake, Sil

ver Bing, and I

i,e~

Jack

et mines.

weeks' has r

ecen

tly-

des

crib

ed t

he ~

eolc

;~r

off' th

district; he co

nclu

des

that ti

e ri

ch silver veins

of the

Tertia,r~

volcanic roclLs that were .s

o pr

oduc

tive

between 1$S3 s,n

d 1890 h

oly

enough promise. of or

e bo

dies

at depth to ~varr:zn.t fur

ther

dev

elop

naen

fThere was ver

y little activity in the Cima district, though at,

a fes

mines some development was don

e.i

In the Rand dis

tric

t tributary to

Osd

ick the Ca

lifo

rnia

Rand Silve

ryas

the most imp

orta

nt mining op

erat

ion.

The mine p

roducer

~ 86

,5I9

ton

s of ore, pra,ctzc~llg all of whien was mil

led;

the

~io

tat~

io~

concentrates were shipped to th

e sm

elte

r. Colman e has d

escribe

milling at the California Rand. Tie mil

ling

costs were ~2 a ton

, o

~ which 60 cen

ts was for wat

er; re

cove

ry 84 per cent of the

gol

d Qn~

~ 97 per cen

t of the sil

ver.

The annualVre

port

of the company for

th

year ended September 30,

1924, sho

ves th

at the

gross value of th

` product was X1,454,106.85, th

e total gr

oss pr

oduc

tion

of th

e min

sinc

e it

s discovery $10,384,537.fi4, and total div

iden

ds X2,885,968.31

of which $486,4~Q was pai

d in 192

4. Late in 1924 eastern cap

itaL

sthad the pro

pert

y exaauned but did

not exe

rcis

e the option to purchase

The Black Hawk mine wa,

~ operated on company acc

ount

until Ma'

and aft

er that by lessees.

The Black Hawk mill tr

eate

d custom or

from sev

eral

mines in San Ber

nard

ino and I~ern Counties. Lead or

produced at the Hi

llsi

de mine in the Shadow l~/Iount~ins BAs shigpe~

~ ~from Valjean.

SAN DIE40 COIINTY

The Golden Ch

ario

t mine at Ju

lian

was deQ

elop

ed fur

ther

, an

a lit

tle ore was milled. The Lone Pine Mining & llevelopment Cc

operated the North Hubbt~rd and Ready Rel

ief groups at Ju

lien

; or

was mil

led in the

50-ton Denver quartz mill.

+Weeks, F. B., '•

PcassIbffities of the Calico mining di

stri

ct ": En>. and Min. 7om~: Pr~c

s, vol. 119, 1~2

pp. 757-762.

~ Colman, M. W., "Met

alln

r~ca

l hi

stor

y of

the California Rand ": Eng, and Miu. Jour: Press, vol

. 12

1~ PP.

. 176

-181

.

UNITED STATES DEP~RTNdEI~TT 4~ THE INTERIOR

HAROLD L. ICKES, Secretary

BUREAU OF MINES

R. R SAYERS, Director

MINERALS Y

~A.R

B~~►

K.

~~

194

h

~,l~~' ~r ~

hYw~f) I

~~f

Compiled un3es the supervis;on of

H. HERBERT HUGHES

Economics and Statistics Branch

~`

,~ OF,7-~

~a~.. F

a ~- v'

'~x''-~e-ti.~ a

~ o

o

~ .a

_.,

UNITED S

TJ►T

ES

GOVERNMENT PRINTING OFFICE

WASHINGTdN :1940

For sale by the Superintendent of Documents, Wasl+ington, D. C. - - Price $2.00 (cloth)

240

MI1~ERt1.LS YEARSOOIi~ 1940

plant; and 525 ounces o£ gold were recovered.

I+'. R. Croft operated

a dry -bank plant on the Shorty

Jefferies mine from January 1 to

Jae 15 ; a bulldozer and ~g-

cubi

c yard gasoline shovel were used in

delivering g

rave

l to a stationary washing plant; and 351 ounces of

gold were recovered.

ORANGE COIINTY

Sccntcc Rosa district.—The Blue Light Sil

ver Mines Co. operated the

Silverado or

Blue Light mine in Silverado Canyon from May 15,

1939,

unti

l the end of the dear; S00 tons of ore were tr

eate

d by flotation,

and a bulk concentrate containing 9 ounces of gol

d, 4,095 oun

ces of

silver, 10,476 pounds of lead, and 9,549 pounds of zznc was shipped to

another mi

ll for

selective flotation.

PLACEB COUNTY

Auburn dis

tric

t.—T

he Gaylord La Valle dri

ft mine wa.s operated in.

1939 (in succession) by Swinburn &Associates, Jose Oro Mining Co.

,J. A. Conner, and Conner and Swiuburn.; 1,

975 cubic yards of gra

vel

yielded 326 oun

ces of gold.

Sutc~ier R2nch disErict.—The Mon

A.rc

h Syndicate cyanided ore from

the Monarch mine daring the early months of 1939.

Dccmccscus district.—The Lost Camp Mining Co. worked the Lost

Camp hydraulic mine in Blue Canyon for

45 days in 1939.

Dutch Flat district.—The Canyon Mines Corporation treated o

refrom the Rawhide mine throughout 1939 in the company 100-ton

amalgamation and concentration mill.

Forestlaill district.—The

Volcano

Mining Co., Ltd., worked the

Volcano

drift mine throughout 1939; 1,400 cubic

yards

of g

ravo

lyielded 271 ounces of gold ~,nd 35 oun

ces of silver.

Lincoln dictriet.—Pantle Bros. operated adry-land dredge on the

Stevens, Clark, and Ahart rancl~.es and in Auburn R~;

cine

in 1939; in

all, 329,000 cubic yards of gravel were excavated with a 1-cubic par

dgn~soline clragline excavator ~.nd delivered to ~ dry-land washing plant

c~,rryin~; four Finlay bowls.

Fey Placer mine operated a dragline

dredge on the Guilfordr~nch throughout the year; the

drA.

glin

e ex-

cavator had a ~ -cub

ic yard bucket.

VP. K. Jan

sen tr

eate

d 245,162

cubic yards of

gravel on the Jones and Finney ranches; a d

ra,glu~.e

excavator with a 132-c

ubic

yard bucket was used to del

iver

gravel to ~

dry lend wask~ing plant. The Midland Co. o

perated

a dragline

dredge intermittently during 1939 and treated 250,000 yards of gr

avel

yielding 715 ounces of g

olc~t.

and 104 oun

ces of silver; the d

raglin.e

excavator hid ~

, 1%-

cubi

c yard bucket. Four miles east of Lincoln

the Jasper-Stacy Co. ope

rate

d throughout the year an electrically

powered dragline dredge using a dragline excavator with a 2-cubic

yard b

neket. The gravels of this district carry zircon, which w

~.s

produced ~s a byproduct ~,t plants using jigs; n.o m~rltet hn

.s yet been.

deve

lope

d fo

r phis product.

Ophz

m district.—The P~nob Gold Dredging Co. operated a non-

flo~

ting

washing plant, using a dragline excavator with ~ 1

;4-cubic

yard bucket, on the F. E. Kayo and the G. E. StoII properties near

Loomis in 1939.

The Gold Hill Dredging Co. operated ~n electrically

powered

connected-bucket dredge with eighty-seven 83z-cubic foot

hucl~ets on the Chabot property 2 miles east. of Loomis from January

(,OLll~

S7LVl;li~

oor:r.~~;r~, l

.T„1D~ AND 7.INC ITT

CAT,TI?OrNfA

Z'~-~

1 to May 14.

I+~. O. Bol~nett operated adry-lend plant on several

properties during the year.

The Alabama California Gold Mines Co.

worked the Alabama mine throughout 1939 and tre

ated

74,

539 tons

of ore in the company 300-ton amalg~ima,tion and flotation m

ill to

yield

bull

ion,

contammg 10,

157 ounces of gold and 3,266 oun

ces of

silver, end 652 tons of concentrates, containing 3,

231 ounces of gold,

39,530 ounces of silver, 5,771' pounds of copper,

~,n.

d 26,826 pounds of

leu.d. The Oro Fino Consolidated Mines operated the Oro Fino mine.

The Burin Ball Mining Co. ope

r~,t

ec~ the Sisley mine throughout the

year.

PLUMAS COIINTY

Cres

een,

t Mills district. -A. A.~Merritt and F. Humphrey, antler the

name of "Cherokee Mine", produced 8,635 tons of ore from the Cher-

okee

mine between January 16,

1939, and the end of the year; the ore

was treated in a 100 -ton amalgamation and flotation mil

l (built during

the ye

ar) and yielded 165 ounces of gold

a,nd 40 ounces of sil

ver ui

bullion and 1,046 ounces of gol

d, 2 r 7 ounces of silver, and 904 pounds

of copper in

35 tons of flotation concentrates. The North Canyon

Mines, Inc., worked the Droege and Ne~v York mines in 1939.

The

`Indian

Valley Mining C

o., Inc., worked the Standart mine from

January 1

tu~t~l Febru~.ry 27, when. ~ fire de

stro

yed the 150 -ton mill

buil

t in 1938; a new 250 -ton

am~,

lgam

a,ti

on and f

lott

~tio

n mill was

bunt and placed in ope

rati

on August 16,

and 24,000 tons of ore treated

yielded 1,

410 ounces of gold and 347 ounces of silver.

Gene

see

district.—The Walker mine of the Walker Mining Co.

(affiliate of the Anaconda Copper Mining Co.) has been'the outstand-

ing mine in Plum.as County for

many y

ears

and was the S

tate's

principal

copper producer in 1939.

1lccording to the

company

prin

ted annual report fo

r the year ended December 31, 1939, 367,041

tons of ore were milled and 1

7,342 tons of concentrates produced.

Shipments consisted of 17,

056 tons of concentrates, lime scale, and

precipitates, with a net

recovery of 8

,010,22G pounds of copper,

180,039 ounces of silver, end 11,

777 ounces of gold.

Granite Basin district.—The Robinson mine was ope

rate

d in 1939

from May until November 10; or

e was treated in the 50-

ion ~,malgam-

ation and $ot~tion mill on the pro

pert

y.Quincy district.—The Imperial mine was act

ive during 1939.

Rich

, Bar district.—Lord &Bishop operated a dragline dredge at

Grays Flat during the early months of 1939.

The V

irgilia Minim

Corporation continued

oper

atio

ns at the Ohio Point Group during

1939.

RIVERSIDE COIII~TY

Dale district.—A larbe number of small

oper

atio

ns in 1939 ~

rere

reported in the Riverside County part of the Dale district.

Eagle Mountain d

istrict.-=The Imperial Smelting &Refining Co.

treated 7,903 tons of ore in the 100-ton flotation mill at the Blacl~

Eftgle mine in 1939; 1,195 ounces of gold, 16,451 ounces of silver,

88,220 pounds of co

pper

, and 676,180 pounds of lead were contained

in the con

cent

rates pr

oduc

ed.

The company contributed 62 percent

of the total lead produced in the State in 1939.

Pinacccte district.—The Ida Leon, Mine c

~ 1~lilling Co. worked the

Id.:~ Leong, mine througho,~t 1~~s.