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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Gravel near base of sediments in Monongahela early glacial channel
Gravel near base of sediments in Monongahela early glacial channel
Glacial Geology
Gravel near base of sediments in Monongahela early glacial channel, above Pennsylvania Railroad at South Millvale Avenue Bridge, Pittsburgh
Gravel near base of sediments in Monongahela early glacial channel
Gravel near base of sediments in Monongahela early glacial channel
Glacial Geology
Gravel near base of sediments in Monongahela early glacial channel, above Pennsylvania Railroad at South Millvale Avenue Bridge, Pittsburgh
Gravel near base of sediments in Monongahela early glacial channel
Gravel near base of sediments in Monongahela early glacial channel
Glacial Geology
Gravel near base of sediments in Monongahela early glacial channel, above Pennsylvania Railroad at South Millvale Avenue Bridge, Pittsburgh.
Gravel pit near Dickville
Gravel pit near Dickville
Glacial Geology
Gravel pit near Dickville.
Hummocky glacial topography
Hummocky glacial topography
Glacial Geology
Hummocky glacial topography, north of Moravia.
Illinoian sand and gravel
Illinoian sand and gravel
Glacial Geology
Illinoian sand and gravel at 144' above tide, new cut for railroad. Conowingo Dam building in background just north of Octoraro Station.
Illinoian till at 680 feet
Illinoian till at 680 feet
Glacial Geology
Illinoian till at 680 feet, one-half mile south of Selinsgrove Junction
Illinois moraine
Illinois moraine
Glacial Geology
Illinois moraine, west of Selinsgrove.
Kame at Blakely
Kame at Blakely
Glacial Geology
Kame at Blakely, near view.
Kame near Blakeley
Kame near Blakeley
Glacial Geology
Kame near Blakely, noth of Scranton.
Kame topography
Kame topography
Glacial Geology
Kame topography, east of Wellsboro Junction. (Celery Gardens)
"Lafayette" gravels
"Lafayette" gravels
Glacial Geology
"Lafayette" gravels, near Blythedale, Maryland.
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.
Lake Warren
Lake Warren
Glacial Geology
Lake Warren. Lake bottom in foreground, looking southwest. Eight tenths of a mile east of mouth of Walnut Creek, Erie quadrangle.
Lake Warren sands
Lake Warren sands
Glacial Geology
Lake Warren sands in upper right-hand corner. Three miles northwest of North East, North East quadrangle.
Lake Warren sands
Lake Warren sands
Glacial Geology
Lake Warren sands in upper right-hand corner. Rest of rock Wisconsin till. Three miles northwest of North East, North East quadrangle.
Little Marsh spillway
Little Marsh spillway
Glacial Geology
Little Marsh spillway from hills to northwest.