Pennsylvania Geological Survey - Historical Photographs

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  • Subject = Glacial Geology

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This collection includes photographs from the Pennsylvania Geological Survey Historical Photographs Collection.
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Area showing erosion of outlet waters
Area showing erosion of outlet waters
Glacial Geology
Area showing erosion of outlet waters. (?) Fairchild note: large erratic near top of hill back from upper terrace (750 feet above tide) west of Luzerne., Back from upper terrace (750 feet above tide) west of Luzerne. "Flooding"? Note large erratic near top of hill.
Bald Eagle Valley
Bald Eagle Valley
Glacial Geology
Bald Eagle Valley, Williamsport and Jersey Shore
Bald Eagle Valley
Bald Eagle Valley
Glacial Geology
Bald Eagle Valley, Williamsport and Jersey Shore
Bed of Lake Cowanesque at Elkland
Bed of Lake Cowanesque at Elkland
Glacial Geology
Bed of Lake Cowanesque at Elkland.
Bench at top of gravel deposit 1380' (200' above river), Illinoian age
Bench at top of gravel deposit 1380' (200' above river), Illinoian age
Glacial Geology
Bench at top of gravel deposit 1380' (200' above river), Illinoian age. Southeast edge of Warren.
Bill Hess Creek
Bill Hess Creek
Glacial Geology
Bill Hess Creek entrenched in Lake Cowanesque delta-fan.
Boulder from drift
Boulder from drift
Glacial Geology
Boulder from drift showing glacial planing and scratching. Beach northwest and north of Fairplain.
Boulder from drift
Boulder from drift
Glacial Geology
Boulder from drift, showing glacial planing and scratching. Beach northwest and north of Fairplain.
Boulder near observatory
Boulder near observatory
Glacial Geology
Boulder (glacial? Olean?) near observatory of Warren Academy of Science
Closer view of the valley wall of drift of Middle Branch of Little Neshannock Creek
Closer view of the valley wall of drift of Middle Branch of Little Neshannock Creek
Glacial Geology
Closer view of the valley wall of drift of Middle Branch of Little Neshannock Creek. Neshannock quadrangle, Wilmington Township
Coastal ranges, approximately 100 miles northwest of Juneau, Alaska
Coastal ranges, approximately 100 miles northwest of Juneau, Alaska
Glacial Geology
Coastal ranges, approximately 100 miles northwest of Juneau, Alaska, showing snowfield and heads of valley glaciers
Culls at moraine at Russell
Culls at moraine at Russell
Glacial Geology
Close-up of culls at moraine at Russell, four miles (?) north of Warren
Cut, for big water main, showing cobbles in gravel, all resting on Martinsburg shale
Cut, for big water main, showing cobbles in gravel, all resting on Martinsburg shale
Glacial Geology
Cut, for big water main, showing cobbles in gravel, all resting on Martinsburg shale. North Street opposite Fourth Street, Harrisburg.
Cut in shore cliff
Cut in shore cliff
Glacial Geology
Cut in shore cliff, made since map of Erie quadrangle 1899. Lake Erie.
Cut in shore cliff
Cut in shore cliff
Glacial Geology
Cut in shore cliff. Top sands of Lake Warren overlying Wisconsin till. Erie quadrangle.
Dam and bridge made of glacial boulders
Dam and bridge made of glacial boulders
Glacial Geology
Dam and bridge made of glacial boulders, Millrift, Pa.
Deer Leap Falls, Childs Park, Dingman Creek
Deer Leap Falls, Childs Park, Dingman Creek
Glacial Geology
Deer Leap Falls, Childs Park, Dingman Creek. Two and one half miles west of Dingmans Ferry, Pike County.
Detail of cliff
Detail of cliff
Glacial Geology
Detail of cliff. At McCord School, three miles northwest of North East, North East quadrangle.
Detail of glacial gravel
Detail of glacial gravel
Glacial Geology
Detail of glacial gravel, west end of Middletown.
Detail of glacial hill, cut by road
Detail of glacial hill, cut by road
Glacial Geology
Detail of glacial hill, cut by road, near Somers Lane.