52BieSE01S6 63.480 MOSS010
RliTORT ON
REPI,8TIVITY SURVEY
OK PROPERTY OP
NfiWKJRK HIKING CORPORATION LIMITED
Under Optior). ^frprn
GRliAT LAKES COPl'ER MINiiS LIKITKD
AT
FOUNTAIN LAKE, MOSS TOWNSHIP
DISTRICT OF THUNDiiK BAY
ONTARIO
Prepared by:
E, P. Sheppard, Geologist for
GEO-TECHNICAL DEVELOPMENT CO, LTD, ^WELLINGTON STREET WEST TO/ONTO, ONTARIO
BED -TECHNICAL DEVELOPMENT COMPANY LIMITED
52B10SE81S6 63.480 MOSS 010C
R 1C F O R T 11, y\.
Introduction ...,........................,...... Page l, 2
Sumnury and Recommendations *.........**........ Page 2, 3
Location, Access, Topography . * *.......... *... *. Page 3i k
General Geology ..................*............. Page !|
Explanation of Resistivity Method ....,......... Page l {. t 5, 6
Geology arid Structure .......... *......,.....,.. Page 6
Resistivity Results ...............,..,,........ Page 6 to 1^
Survey Data ......*...*...............,,...*.... Page 1,5, 16
is- -;i- ir vi- -ir X i f
PLANS NOS. l, 2, 3 ......, Resistivity Contoursand Geology,
(Drawinc Ref. Plan No. l llf-U-^lj.
Plan No.2 15-k-Zk
Plan No,3 16-1|-51|.)
6ED- TECHNICAL DEVELOPMENT COMPANY LIMITED
SWewklrk Mlnlnf, Corporation Limited, 100 Adelaide Street West, Toronto, Ontario
Gentlemon:
The following report describes the electrical
resistivity survey conducted over ^2 mining claims of the
Fountain Jjake property, optioned from Great Lakes Copper
Minos Limited, 1^ miles south of Kashabowie, Ontario.
Tho survey wan conducted by Geo-Technical
Development Company Limited during the period from February
17th to March 26, 195H* under the direct supervision of
E'. B. NichollH, B.Se, who completed most of the active work,
The vrrlter spent the period of March 22nd to March 2^th,
on the property. The bulk of this period war, spent in re-
logRinft core from 10 diamond drill holes at Fountain Lake
and collecting samples from trenches and rock exposures,
The writer wan conducted over the property by Mr, Caesar
Grammetto, prospector in the employ of Great Lakes Copper
Mines Llrolted,
Tho claims covered by the survey are as follows:
Unpatented claims T.B. 31788, 31832* 31836, 3183.7, 31838,
31839, 318140, 32138, 3211*1, 3211j2, 3211+3, 3211)1), 321l#,
3211)6, 3211+7, 3211|0, 3211|9, 3215,'Q, 3235'!, 321^2, 32270,
32271, 32272, 32273, 32271;, 32275, 32276, 32277, 32278,
32279, 32280, 32281, 32282, ^2522, 1)2^23, \ \1#8\ 9 k&tt,
1|23'26, (42^27, 1)2^28, 1|2529, 1|2530, U337S, 1^3376, 1+3377,
143378, 1)3379, Ip38o, l)338l, 1)3382, ^3383, 1|3381|.
BED -TECHNICAL DEVELOPMENT COMPANY LIMITED
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The reaults of the survey are shown on the accom-
punylnp, plans Hos. l, 2 and 3 (Hef.' Nos. Ii|-l.j-5l4-, 15-^-5*1
and l6--;i.-0)j respectively) ,
^umj r.i ary and^ JR a commend atjU) n s
The resistivity survey checks the geological
informs f'on fairly closely, except in the northwest portion
of the property (claims T,B. 32202, 32272, 32275, 32281,
32?73, 3183^, 32280, 3227)1, 31837).
Some 18 p;eod conducting aones are shown by the
electrical survey. Of these, 9 are considered to be of
primary importance, but strength of all the anomalies suggests
the presoneo of sulphides.
The structural picture, while complicated, is
encouraging and with the number of good conductors found
makes the area an extremely interesting one In which to search
for sulphide ore shoots.
Surface exploration is recommended on all the surface
anomalies, followed by diamond drilling on the primary
anomalies where surface work cannot eliminate them.
Geological information gathered from relogging core
of 10 holes showed that Hole #3 intersected an andesite granite
contact and showed It to be a shattered contact but unmineral-
Izod, Holes //l and j/2 wore lost. Holes #i| to #9 were drilled
from the same setup on the main trench and showed chalcopyrite,
The drilling program did not supply much .Information on the
property and appears to have missed its main objectives.
GEO -TECHNICAL DEVELOPMENT COMPANY LIMITED
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drilling is recommended on "A" and "B"
zones. Careful selection of the drilling sites with regard
to topography should avoid the difficulties encountered by
the original drilling program.
Surface work is recommended on the remaining zones
in the form of detailed geological mapping and sampling where
mineralization shows, followed by diamond drilling where pre
liminary follow-up work substantiate F. the conclusions of this
report.
The L̂ 2 mining claims covered by the survey lie some
13' miles south of Kashabowie Station on the Canadian National
Railway and about 80 miles by road from Kashabowie to Port
Arthur, Ontario. Land route is from Kashabowie Station by
road to Goldstream Copper Minos Limited on Burchell Lake, a
distance of 9 miles, thence by canoe south to portage on
Burchell Lakes, down Squeers Creek to Twin Lake and into Fountain
Lake, approximately 6 miles. The total distance is 1^ miles,
The most direct route is by air from Port Arthur direct to
Fountain Lake, or from Kashabowie Lake to Fountain Lake.
Fountain Luke occupies the central portion of the property.
The area has fairly rugged topography, with rocky
hills rising to over 1,^0 feet above Fountain Lake. The inter
vening valleys are composed of swamp areas and occasional
small ponds. The area is thickly forested with first-growth
spruce, jackpine, birch and poplar, the low areas being
GEO -TECHNICAL DEVELOPMENT COMPANY LIMITED
-k-
cove3-0(1 with thick growths of alder and willow. Alluvial
tf'Od, lacustrine deposits und glacial till make up the
overburden In tho aroa,
(TO ri oi* ul. r Gt)ol oj^y
Detailed geological mapping was carried out by
L. Ferris Kendall-Leicestor in 193^2. The areu is the
southern part of an extensive belt of Precambrian volcanic
rocks which follows an axial direction, extends we-l^r-ly
through Shebandowan and Burchell Lakes, then swings eouth-
westerly through Fountain Lake and I;Joss Lake* This series
of volcanics is Invaded by peridotite^ amphibolites, diorites
and quar t a diorites of Hailoyburian age, and syenite, syenite
porphyry, etc. of Algoman age, Pyritiferous copper, nickel
and irjolybdonite mineralization occurred during Keweenawan
UC6J glacial and recent deposits of boulder till, clay and
gravel, alluvial oand and lacustrine deposits of Pleistocene
age. The general strike of the formations is northeast,
The aroa has been strongly sheared and faulted.
The geology has been described in detail by
Kendall-Leicester in his report on Fountain Lake property
and is appended.
Ex pjL an a t i on ̂ of m HO sj. st i vi t y Method
The) method used by Oeo-Technical Development Company
Limited is a form of the early resistivity methods modified
by some seven consecutive yeurs experience in tho field. In
essence, a known current is put into tho ground and readings
GEO -TECHNICAL DEVELOPMENT COMPANY LIMITED
are taken at 50 foot intervals along the picket lines by
sensitive vacaxum tube voltmeters measuring the voltage drop
across this Interval, Calculations translate these voltage
readings into resistance values in terms of ohm-centimeters.
These are plotted on the accompanying plans Nos. l, 2 and 3*
Due to the inhomogeneity of the medium being
examined, the complexity of the geology and structure,
mathematical formulae can seldom be used to interpret the
results of a reconnaissance survey. Interpretations are
based on experience and a knowledge of the geological condi
tions in the urea being tested. Where the latter are unknown,
the interpretation mast, of necessity, be limited or very
tentative. However, without any geological information it is
generally possible to differentiate between banded rocks such
as volcanic s, sediments or gneiss and largo bodies of massive
intrusive s, due to the difference in electrical conductivity
between the various flows or beds. Strike trends, folding,
etc, are therefore readily picked up. In some cases the
presence of rock contacts may be inferred.
Shear or fracture zones are relatively better con
ductors due to their high water content. Where extreme low
resistivity values arc found, graphite or sulphides are
indicated. Graphite is found in schist or shear zones which
are shown by electrical methods-as, generally, narrow low
linear trends. Unfortunately, from the point of view of
BED -TECHNICAL DEVELOPMENT COMPANY LIMITED
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iriterpretation, sulphides may be present with the graphite
or may occur 1n shear zones giving similar low linears.
Prom t ho geological data available to the writer on this
property, the odds are in favour of the presence of sulphides
r o t h or than graphite.
Detailed geological maps made over the land areas
of tho claims group by L. Kendall-Lelcester have assisted
the writer in the interpretation of the survey results. At
the same time, the geophysical data does not agree in all
cases with the previously gathered geological data. Lack
of outcrops in drift- covered areas loaves the geological
datu interpretation opon to change. In other words, dikes
and minor intrusions may bo parallel to general trends of
tho r-tjfij i*tiv3 i. y survey and not as shown on the detailed
go o l o i ;i c a l pi an ,
H os i. st 3 y 5. ty Jje su l ts
The various zones of considered primary importance
arc discussed in tho following paragraphs under their
designated letters.
"A" zone commences on the east side of Fountain Lake
and runs northeast for approximately 1^00 feet. This area had
boon previously diamond drilled by two holes, Nos, l and l\.,
//l Hole was drilled to a depth of ?.QB feot whero it broke
through the edge of the hill. Cementing was attempted but
the hole was finally abandoned. The log of this hole is
GEO -TECHNICAL DEVELOPMENT COMPANY LIMITED
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appended. Hole //lj. was driven from north of #1 towards, the
bottom of //l In order to explore the ground that the first
hole failed to reach. The hole was cased to 1E# feet;
bedrock was not reached and the hole was abandoned. The
results of those holes are Inconclusive. The resistivity
survey indicates that the drilling did not reach its
objective.
Field observations made by the writer on March 2lj.th
showed heavily sheared granitised greenstone with a strike of
N l|50# and a dip of 650E. At the nose of the outcrop trenching
had been carried out. Grab sample #2 was taken from material
dug out of the snow by Mr. Craiwiette and presumably comes from
the trench blasted there. This sample was heavily mineralized
granitised greenstone. Visible minerals were chalcopyrite and
pyrite.
Assay results are j Cu 3.270
ZnNil
Ni Nil
Further surface investigation of this area was
hampered by deep snow and a three-foot depth of ice which had
built up at the base of the cliff. The good conducting zone
outlined by the resistivity survey corresponds very closely
with the contact of quartz feldspar prophyry mass and volcanics
outlined on Kendall-Leicester's map. Previous sampling from
this area gave results of 10# Molybdenite and 10^ chalcopyrite,
"B" zone occurs 300 feet south of the "A" zone, has
a length of approximately f&O feet, trends N i|^0E or parallel
GEO -TECHNICAL DEVELOPMENT COMPANY LIMITED
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to "A" zone. Keferring to Kendall-Leioester's geological
map, the "B" zone appears to show the south contact of the
feldspar porphyry mass with volcanics. The zone also corres
ponds closely with shearing indicated on the map. This area
does not appear to have been investigated. The "B" zone
therefore warrants the same amount of investigation as "A"
zone, as their relative positions geologically appear to be
of equal significance.
"C" zone, 1|.00 feet south of "B", has a length of
lj.00 foot, with strike approximately northeast, and appears
to correspond with a quarts, porphyry dike indicated on the
map. Outcrops are few In this area and the strike, width and
extent of dikes and dacite flows are-open'to question,
The slight bend in the "C" zone at its western end
may indicate the position of a south-eaet striking fault.
The strike of the fault is not clear. This "C" zone may be
of secondary importance.
"D" zone has a strike parallel to "O" with a length
of approximately 700 feet and corresponds to an indicated
dacite flow. The greater width of the good conducting zone
than that of the indicated dacite flow may be a better
indication of actual width of the flow than the geological
picture which was outlined from a few outcrops. The small
conducting zone to the south of "D" may be the expression
of small intrusions of diorite, ^ither of these formations
may be favourable host rock for sulphide replacements.
BED -TECHNICAL DEVELOPMENT COMPANY LIMITED
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"E" IB a linear zone of good conductance with
N ^00E strike and corresponds to part of the dacite flow
outlined in this area or, more specifically, a band of
andesite in the dacite, ^his andesite may be heavily sheared.
Diamond drill holes Nos. 2 and 3 were drilled north of and
away from this z one. Investigation of "E" Bone should be
contingent on results from "C" and "D",
"G" zone of good conductivity has an approximate
length of 1000 feet, atr-lko N 1|50S, irregular width, varying
from 100 foot on the wost end to 300 feet on the east end.
This zone conforms to indicated dacite flows. Two drill
holes are shown on the geological map, intersecting the west
ond of "(r 11 zone. The core from these holes was not available.
It I B u nderstood that those holes were drilled prior to the
10-hole program mentioned in this roport, fJold was reported
from these holes.
"H" zone of good conductivity conforms with rhyolite,
dacite contact indicated on the geological map, location (6).
Earlier \tfork showed the presence of chalcopyrite, zinc blende
and pyrite. Surface investigation le warranted along this
zone; i.e. trenching and detailed geological mapping. Prom
this work some idea may be obtained as to size and extent of
the chalcopyrite mineralization.
The general structure along this northeast strike
indicates a fold or series of folds, with fold axis generally
northeast. The whole series of flows is intersected by quartz
BED -TECHNICAL DEVELOPMENT COMPANY LIMITED
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porphyry dikes and broken by numerous faults and shears.
"I", "J" and "K" zones of good conductivity appear
to have the same geological setting as "H". "K" Is a narrow
j?0 foot zone of good conductivity with strike of 300 feet*
"J" zone is parallel In strike with a width of 100 feet f
length of 700 feet, general strike of northeast.
These zones of good conductivity may represent
shear zones in the volcanics. The presence of pyrrhotite in
some of these shears is a possibility not to be overlooked.
"L" zone of good conductivity conforms fairly
accurately with Zone (13) on the geological map. Three
diamond drill holes are shown but core is not available. A
re-examination of the cores, should they become available,
would be of interest and might give the key to the cause of
the good conductive zone outlined by the resistivity survey.
In the event that these cores are required, Mr. Craramette
(Caesar Crammette, Fort William, Ontario) should be able to
locate any cores not stored at Fountain Lake.
"M" zone of good conductivity is narrow, linear,
and extends for a distance of 1^00 feet in a northeast
direction. The eastern end coincides with the site of two
drill holes put down on a surface showing reported to carry
gold. The core from these holes was not available and Mr.
Crammette reported that they had been taken to Port Arthur.
The strike of this conducting zone does not coincide
with the strike of geological formations as shown on the
GEO -TECHNICAL DEVELOPMENT COMPANY LIMITED
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geological map. This is an area of few outcrops and the
formations may be found to have a Strike more nearly north
east than the interpretation shown on the geological map*
Relogging of core and detailed surface mapping should be
carried out before further and more expensive work Is under
taken on this gone.
"N" zone of good conductivity outlined by the
resistivity survey is approximately 1600 feet in length, has
a northeast strike and a width of ^0 feet on the west end,
300 feet in the central portion and tapers down to 100 feet
on the east end. The major portion of this zone is under
the surface of Fountain Lake. The western end coincide? with
a series of felsite dikes and rhyolite flows. The area to
the west is swampy with few outcrops. It is suggested that
the strike of the formations lie more nearly east than the
geological map Indicates,
"O" zone is a narrow, linear conductor approximately
900 feet long with a strike of approximately east-west and
slightly curving to southeast. The eastern end of the zone
corresponds with outcrops of diorite which shows on the
geological map as a narrow curving dike. A few isolated
diorite outcrops occur to the west. The zone of good con
ductivity outlined by the resistivity survey shows a definite
east-west zone which could possibly be a mineralized diorite
intrusion.
GEO -TECHNICAL DEVELOPMENT COMPANY LIMITED
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The area warrants Investigation starting with a
search for additional outcrops followed by trenching and/or
diamond drilling.
"P" zone is a narrowi linear conducting zone*
trending oast-west approximately parallel to "O" zone,
coincides with outcrops of lumprophyr dike. The remainder
of the area Is drift-covered. Investigation of this area
could be conducted In conjunction with that of zone "O",
"X" is a narrow, linear curving conducting zone,
general strike north-east, coincides with syenite mass which
intrudes volcanics. The zone is interpreted as a shear zone*
Presence of sulphide mineralization in this shear zone is a
possibility; it should be investigated,
"P" zone, located In the north-west corner of
claim 32130* The resistivity survey showed a weak zone of
good conductivity. This zone coincides with the location of
a chalcopyrite showing on the above claim and designated on
Flan No. l as #3* This showing is described by Kendall-
Loicester as a well mineralized strike fault breccia zone,
containing 10' to 12' widths of lenses of mass sulphides,
expoBed by stripping. The general outlines of the showing
are reported as 10' - 12* widths, siliceous breccia, length
2? feet. Rock trenched to depth of 3 feet to ^ feet. The
vein gangue consists of sugary quartz well mineralized by
locally massive lenses and clusters of chalcopyrite and
pyrrhotite-pentlandite. Disseminated pyrite occur across
GEO -TECHNICAL DEVELOPMENT COMPANY LIMITED
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an additional width of V - 10' to the north in fractured
andesite. Magnetite le also present and encrustations of
corelllte*
This area was visited by the writer in March. A
grab sample was taken from rock pile and assayed* the results
being as follows:
Sample Cu 9782J5
2nnil
Ml nil
Diamond drill holes Wos, f? to 9 were drilled in
November 19^2 from the same setup on top of the main trenched
zone # (3). The following samples were taken from these
holes:
Sample No. D.P.Hoie Depth of Sample Cu Zn Hi
Tracel
k
6
l68*19'90'
These samples were grab samples selected from what
appeared to be tho best minei'alized lengths found in the core*
The logs of the holes are appended.
The drilling from this location showed that an
Irregular wedge-shaped plug of chert touches the surface
at this point. It strikes west and plunges west, widening
out in depth. The chalcopyrite mineralization appears to
decrease rapidly with depth.
#12 Showing, described in Kendall-Leicoster's report
as a 6' wide strike fault, shear zone, characterized by red
fault gouge and much chlorite schist, 50 feet to the south
BED -TECHNICAL DEVELOPMENT COMPANY LIMITED
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a parallel strike fault was reported. It is a graphitic
shear zone,
This occurrence did not show up on the resistivity
survey results. It is thought that the location of the show
ing is somewhat farther north, possibly just beyond the north
boundary of the property, hence it was not surveyed.
drab sample No. 6 given to the writer by Mr, C.
Crammettei is presumed to have been taken from this showing*
The results of assaying this specimen are as follows:
Copper - 3.22?o,
A possibility also arises that this showing fell
between two of the survey lines and is less than Ij.00 feet
in length, thus it would not appear in the resistivity
results.
This area, especially that adjacent to the north
boundary of the property, should be Investigated further
and extent, direction and size of the shotting established.
To generalise} Prom the study of individual zones
a general picture emerges: i.e., the zones "A" and "B"
appear to occur on contacts of a granite or quartz porphyry
mass. The resistivity survey outlines the granite as more
boss-shaped than the Geological Map indicates. Taking these
zones as "types", "O" and "P" appear to occupy the same
relative positions.
Nine good conducting zones appear to warrant
immediate investigation, In order of importance they may
GEO -TECHNICAL DEVELOPMENT COMPANY LIMITED
be placed as follows? "A", "B", "C", "F", "O", "M", "O",
"K", "L". Many of tho so-called secondary anomalies, however,
may be found to have equal importance as all may contain
sulphides.
It is recommended that all the anomalies be
investigated by surface examination if possible. Where
direct evidence cannot be obtained, drilling is recommended
on primary anomalies. Depending on the results, the secondary
anomalies may warrant further investigation.
Survey Data
The electrical resistivity survey was carried out
over f?2 raining claims of the Fountain Lake property optioned
from Great Lake E Copper Mines Limited, located in Thunder Bay
District, Port Arthur Mining Division, Ontario,
The survey was conducted by Geo-Technical Development
Company Limited during the period from February 17th to March
26th, 195'1|* Two major base lines were established, one
traversing the northern and one the southern sections of the
property. The base lines were established in N i?J?QE direction
and N lj.0 0 W-8 1|0OE. Picket linea were turned off at right
angles to the Base lines at lj.00 foot intervals.
Plan No. l (Resistivity Contours and Geology)
depicts the results of the electrical resistivity survey and
superimposed geology compiled from Kendall-Leioester's map.
The electrical readings were taken at 50 foot intervals along
GEO -TECHNICAL DEVELOPMENT COMPANY LIMITED
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traverse lines and the results plotted on Plan No. l3
expressed in ohm-centimeters x 10 ,
A total of 1^7 miles of lines were surveyed by the
electrical resistivity method which required ^013 station
readings.
The total area covered by the survey was approxi
mately 2,080 acres.
The number of eight-hour man-days required to
complete this work is as follows:
(8-hour) Attributable to Assessment Work
960
GO
276
Line cutting and chaining 2l|0 x 1|
Laying spread wire 20 x 1+
Operating Resistivity survey 69 x ?j.
Calculation fc Interpretation 20 x l±
Drafting l|8 x k
Office typing 6c Supervision ^28 x ij.
, **.t TOTALS
192
112
l700
r 0 ~i, v l'' -*
)Respectfully submitted,
QEO-TECHNICAL DEVELOPMENT COMPANY LTD.
April 23, Toronto, Ontario
K. P. Sheppard, Geologist
GEO -TECHNICAL DEVELOPMENT COMPANY LIMITED
LEGEND
i LINES CUT AND CHAINED, RESISTIVITV READINGS OBSERVED
TV fT"'TruiD
ELECTRICAL RESISTIVITY ANOMALY
PROPOSED DRILL HOLE
OUTLINE OF HIGH GROUND
25 OHM - CM x 10
32 146-- "' A LOW GROUND 8. SWAMP AREA
CLAIM BOUNDARY AND C LA l M POST LO C A T l ON
DATA FROM GEOLOGICAL MAP BY ; KENDALL - LEICESTERMAPPED IN 1953
GEOLOGICAL CONTACT FROM GEOLOGICAL MAP
SHEAR ZONE FROM GEOLOGICAL MAP
FAULT ZONE " " "
GREATLAKES COPPERw* 32 147
LOCATION 8, IDENTIFICATION NUMBER OF TRENCH OR M l M ERA L SHOWING FROM GEOLOGICAL MAP
\ D RILL HOLE C LOCATION FROM GEOLOGICAL
STRIKE * DIP FROM GEOLOGICAL MAP
ELECTRICAL RESISTIVITY SURVEY OVER FOUNTAIN LAKE PROPERTY OF
MINES LIMITEDRESISTIVITY CONTOURS AND GEOLOGY
MOSS TOWNSHIP
DISTRICT OF THUNDER BAY
PORT ARTHUR MINING DIVISION
ONTARIO
GEOPHYSICAL SURVEY BY:
-TECHNICAL DEVELOPMENT COMPANY LIMITEDPLAN- NO.-lCENTER SECTION PART OF PROPERTY
MARCH-APRIL- 1954
SCALE; i- 2004o o' 600'
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ICA
L
DE
VE
LO
PM
EN
T
CO
MP
AN
Y
LIM
ITE
DP
LA
N
NO
.- 3
SO
UT
H
- S
EC
TIO
N
PA
RT
O
F
PR
OP
ER
TY
MA
RC
H -A
PR
IL -
19
54
SC
ALE
:200
tSo
' to
p'
7o
o'
ftpo
800'
16 -
- 4
- 5
4
- -M 32 280