Pennsylvania Geological Survey - Historical Photographs

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  • Date = 1931-08-01

About This Collection

This collection includes photographs from the Pennsylvania Geological Survey Historical Photographs Collection.
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Across Susquehanna at gap of Second Mountain
Across Susquehanna at gap of Second Mountain
Surface Water
Across Susquehanna at gap of Second Mountain showing massive ledge below retaining wall and lack of ridges in river in line with this ledge. End of Cove Mountain on west side of river.
Across Susquehanna Gap in Second Mountain
Across Susquehanna Gap in Second Mountain
Surface Water
Across Susquehanna Gap in Second Mountain taken from north end of retaining wall showing exposured ledges.
Beaver dam in Prouty Creek
Beaver dam in Prouty Creek
Engineering Geology
Beaver dam in Prouty Creek, Summit Township.
Bed of Lake Cowanesque at Elkland
Bed of Lake Cowanesque at Elkland
Glacial Geology
Bed of Lake Cowanesque at Elkland.
Bill Hess Creek
Bill Hess Creek
Glacial Geology
Bill Hess Creek entrenched in Lake Cowanesque delta-fan.
Channel (?)
Channel (?)
Stratigraphy
Channel (?) near Nelson.
Dam washed out
Dam washed out
Surface Water
Dam washed out September, 1911. Austin, Pa.
Dr. Willard
Dr. Willard
Staff of Survey
Dr. Willard (Bradford).
Elk Mountains
Elk Mountains
Geomorphology
Elk Mountains.
Gaines spillway
Gaines spillway
Glacial Geology
Gaines spillway, Gaines quadrangle.
Gap of Second Mountain
Gap of Second Mountain
Geomorphology
Gap of Second Mountain showing south of tow principle mountain making ledges.
Lake Cowanesque bed west of Elkland
Lake Cowanesque bed west of Elkland
Glacial Geology
Lake Cowanesque bed west of Elkland.
Lake Cowanesque Dam
Lake Cowanesque Dam
Glacial Geology
Lake Cowanesque Dam, varved sand boulders.
Lake Cowanesque delta-fan from south looking toward Nelson
Lake Cowanesque delta-fan from south looking toward Nelson
Glacial Geology
Lake Cowanesque delta-fan from south looking toward Nelson.
Lake Cowanesque delta-fan from west
Lake Cowanesque delta-fan from west
Glacial Geology
Lake Cowanesque delta-fan from west.
Little Marsh spillway
Little Marsh spillway
Glacial Geology
Little Marsh spillway from hills to northwest.
Little Marsh spillway of Lake Cowanesque
Little Marsh spillway of Lake Cowanesque
Glacial Geology
Little Marsh spillway of Lake Cowanesque.
North slope Lake Cowanesque delta-fan
North slope Lake Cowanesque delta-fan
Glacial Geology
North slope Lake Cowanesque delta-fan from N.Y.C. grade.
Pine Creek Gorge
Pine Creek Gorge
Surface Water
Pine Creek Gorge looking north from lookout.
Site of Ole Bull's Castle
Site of Ole Bull's Castle
Geomorphology
Site of Ole Bull's Castle. Two miles south of Oleona along Kettle Creek.