Lay down – uplift – sculpt

Portage Escarpment bedrocks were laid upon the Late Devonian sea bottom, >350 Ma (million years ago). Mud built the shales (Chagrin, Cleveland and Cuyahoga). Silt built the Euclid bluestone. Sand gave Berea and Sharon sandstones.

Rock – Ice –Water – Humans

Local Nature Timeline

Tropical sea bottom

Glacial sculpting

sandstone terrace

bluestone terrace

Glacial advance

kakakakaMaMaMaMa

Lake Erie rises to present levelNiagara River lowers Lake ErieFinal glacial retreatFinal glacial advanceGlacial advances beginNorth American upliftBerea sandstone depositedEuclid bluestone deposited

Dugway Brook lies on the Portage Escarpment, Cleveland’s major terrain feature. Advancing glaciers smoothed the hill but did not diminish it.

As the last glacier retreated northward, rushing melt water spawned our ‘escarpment run’ streams including the Dugway Brooks.

Bedrock deposition, glacial sculpting and stream cutting thus produced the local landscape.

Devonian earth

LM

ich

igan

LM

ich

igan

L Huron

L Huron

About 300 Ma, our area uplifted from the sea. The Ohio and Saint Lawrence watersheds began to form. Much later, about 2 Ma, the earth cooled and great glaciers began mounting in northern North America.

Lake Erie ~570’ above sea level

Uplift

we-are-stuff

4

12.6

16

23

2.5

300

350

360

Local History Timeline

1797 Euclid Twp survey defines Lot 7: 154 acres

1809 Caleb Eddy gristmill at the bluestone falls

1828 Mayfield Road opens. School district defined

1834 Ezra Lacy buys quarry area in Lot 7

1869 Lake View Cemetery opens

1877 Mayfield Road becomes a plank toll road

1887 Tifereth Israel buys 21 a for Mayfield Cem

1892 P.C. Calhoun opens Euclid Heights Allotment

1898 M.M. Brown opens Mayfield Heights Allot.

1899 Cleveland & Eastern ERR opens on Mayfield

1909 Grant Deming opens Forest Hill Allotment

Dugway Brook WB

walking tour

Dugway Brook WB, looking southeast

From Coventry Village to Lake View Cemetery, we follow Dugway west branch as it cuts through sandstone terraces and shale ravines.

See how Dugway denizens have used local rocks and waters for milling, quarrying and building, and for burying the dead and schooling children.

Learn the natural base for the suburban built environment on the Portage Escarpment.

Broach issues of stream conservation and the greening of residential development.

Cleveland Heights Rocks and Waters 2015

Dugway Brook West Branch walking tour

Cleveland Heights Historical Society Cleveland Heights Landmark Commission

Sponsors

Roy Larick, Korbi Roberts, Jim Miller

May 30, 2015

USGS LiDAR; Google Earth aerial viewer

pro-glacial lakes

Just 23 ka (thousand years ago), the last glacial advancebulldozed the rock sandwich slope (Portage Escarpment) to create two terraces: one atop the Berea Sandstone and one atop the Euclid bluestone.

Sixteen thousand years ago, the last glacier retreated through our area. The ancestors of Lake Erie began to emerge. Just 14 ka, Dugway Brook cut through escarpment to create the ravines of today.

© 2015Bluestone Heightsbluestoneheights.org

Dugway Brook West Branch

bluestone & sandstone terraces

Ezra Lacy quarry (1834)

NEORSD dam (1979)

Coventry School, (1920)

No

rth

1: Edgehillravine

2: Rock Ctquarry

7: NEORSDdam

K. Roberts

K. Roberts

USGS LiDAR underlayGoogle Earth aerial viewer

Cleveland Hts History Center

R. Larick

R. Larick

LVC lower bluestone quarry (~1890)

Lower bluestone knick point Edgehill culvert & sandstone knick point

Coventry Village culvert outflow

Upper bluestone knick point

R. LarickR. Larick

Lake View Cemetery Association

Mayfield Cemetery sexton’s house (~1900)3: Sexton’shouse

R. Larick

R. Larick

4: CV culvertoutflow

5: Eddymill

LVC upper quarry

Caleb Eddy mill (1809)

Massive bedding

Flaggy bedding

6: lowerquarry

J. Miller

• Reviving the natural regulation of stormwater at low cost and high community benefit.

• Reconnecting fragmented natural habitat areas as a means to build local biodiversity.

In learning natural history and the ways in which natural & human forces interweave, we can better address two crucial local environmental issues.

We have buried our streams and flattened our features. With development, environment is degraded and biodiversity is reduced.

Top of Berea flaggy beds, Edgehill Rd

R. Larick