doan brook gorge walking tour
DESCRIPTION
Walk the Doan Brook gorge from the Lower Lake downstream to Ambler Park. Here, the Portage Escarpment has several hard rock layers. We trace a glacial meltwater channel from the top of the Berea Sandstone through the Euclid bluestone. In numerous stops, see how early settlers used the rocks and waters for mills and quarries. Learn the natural base for suburban development. Comprehend the issues for stream conservation. Supported with a grant from Cuyahoga Arts & Culture, 2014.TRANSCRIPT
Doan BrookWatershedPartnership
3 pm, Sat, June 7, 2014
Roy Larick
Bluestone Heights
Doan Brook gorge, looking southeast
Doan Brook Watershed Partnership
USGS LiDAR underlay; Google Earth aerial viewer
for the
bluestone terrace
sandstone terrace
Maple RidgeTurkey Ridge
[email protected] 216-325-7781
Doan Brook Gorge
walking tour
With support from
Natural History
Meet: Fairhill Partners campus: 12200 Fairhill Road, Cleveland, OH 44120
Doan Brook gorge, looking southeast
Between Turkey and Maple Ridges, glacial melt water carved sandstone and shale. Bedrock exposures evince the Age of Fishes sea of 370 million years ago.
The Natural History gorge hike explores the bedrock and the deep history of fast-changing natural and cultural features.
USGS LiDAR underlay; Google Earth aerial viewer
bluestone terrace
sandstone terrace
This event sets the stage for history hikes on the gorge’s Early Settlers (8/23) and Suburbanites (19/18).
Maple Ridge
Turkey Ridge
Doan Brook rocks
During the Late Devonian Period, 370 million years ago, our region lay near the Equator, in the Ohio Basin Sea. The nearest land was 150-200 miles to the east. Chagrin and Cleveland Shale fossils indicate a muddy sea bottom. The sea had many fish; few were fossilized.
Redrawn from Hannibal & Feldmann
The Explorer 27(1), 1985
Age of Fishes Ecology
Doan Brook and the Portage EscarpmentJust 23,000 years ago, the last glacial advance bulldozed the Portage Escarpment to create two terraces, one atop the Berea Sandstone and, just below, atop the Euclid bluestone. To create its gorge, Doan Brook cut through these hard rocks and underlying soft shale.
Gulch and GulfIn early settler days, a deep ravine with craggy cliffs could be called a gulch. A wider ravine with vertical sides could be called a gulf. In the Berea Sandstone, Doan Brook carved its gulch. In the bluestone and underlying shale, the brook dug its gulf.
Doan Brook Gorge
© 2014 Bluestone Heights
Chardon Hill
moraine west tip
Delaware ravine. Top lip of the gulch.
gulf
gulch
blue
ston
e
t
erra
cesa
ndst
one
t
erra
ce
Doan BrookGorge
Euclid bluestonegulf landscape
Berea Sandstonegulch landscape
Gulf S wall, above Fairhill.Bluestone level near top.
Gulf S bank, upstream from MLK. Bluestone level near bottom.
NCSL
In the Berea gulch. Transition from massive to flaggy beds.
Cleveland Memory Project
CMP
W.C. BarrowTurkey Ridge
Maple Ridge
Nor
th
Ambler Heights
USGS LiDAR underlayGoogle Earth aerial viewer
bluestone quarries
sandstone quarries
stone culvert
Gulf S cliff. Fine flaggy bedding at top of the Berea sequence.
Trough cross-bedding within
the Berea flaggy beds.
Cle Water Dept
“quarry dump”
Baldwin Res RR
Fairhill Village
Gulch N cliff, 1894, view W to grist mill ruins.
Gulf N wall, above North Park. Bluestone level near top.
gulf & gulch
R. Larick
R. Larick
R. Larick
Cleveland Memory Project
R. Larick
Doan BrookWatershedPartnership
3 pm, Sat, June 7, 2014
Roy Larick
Bluestone Heights
Doan Brook gorge, looking southeast
Doan Brook Watershed Partnership
USGS LiDAR underlay; Google Earth aerial viewer
for the
bluestone terrace
sandstone terrace
Maple RidgeTurkey Ridge
[email protected] 216-325-7781
Doan Brook Gorge
walking tour
With support from
Natural History
Meet: Fairhill Partners campus: 12200 Fairhill Road, Cleveland, OH 44120