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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Glacial gravel pit
Glacial gravel pit
Glacial Geology
Glacial gravel pit near Old Clarendon. Pre-Illinoian age (?)
Glacial gravel pit
Glacial gravel pit
Glacial Geology
Glacial gravel pit, east of Warren.
Glacial gravel pit and bench
Glacial gravel pit and bench
Glacial Geology
Glacial gravel pit and bench above hill east of east part of Warren., Same as [negative no.] 2316.
Glacial gravel pit and bench above hill east of east part of Warren
Glacial gravel pit and bench above hill east of east part of Warren
Glacial Geology
Glacial gravel pit and bench above hill east of east part of Warren. Under word "Warren" on quadrangle map.
Glacial gravels
Glacial gravels
Glacial Geology
Glacial gravels, Interstate 80, mile 14.5
Glacial grooves at silica sand quarry
Glacial grooves at silica sand quarry
Glacial Geology
Glacial grooves at silica sand quarry, Meadville.
Glacial grooves (east-west) on sandstone
Glacial grooves (east-west) on sandstone
Glacial Geology
Glacial grooves (east-west) on sandstone at top of Penn Slicon Company quarry, North Main Street Extension, Meadville.
Glacial hill cut through by road
Glacial hill cut through by road
Glacial Geology
Glacial hill cut through by road, near Somers Lane.
Glacial lake bench and floor Route 20
Glacial lake bench and floor Route 20
Glacial Geology
Glacial lake bench and floor Route 20, seven miles west of Erie
Glacial lake bench low terrace
Glacial lake bench low terrace
Glacial Geology
Glacial lake bench low terrace, 715 feet west of Luzerne., Lower terrace 715 feet west of Luzerne.
Glacial moraine
Glacial moraine
Glacial Geology
Glacial moraine, just northeast of Somers Lane.
Glacial moraine beside road
Glacial moraine beside road
Glacial Geology
Glacial moraine beside road just west of highway bridge.
Glacial pothole near Archbald
Glacial pothole near Archbald
Glacial Geology
Glacial pothole near Archbald.
Glacial sand pit
Glacial sand pit
Glacial Geology
Glacial sand pit, one mile east of Harbor Bridge
Glacial smoothing and scratching on Coal Measures sandstone
Glacial smoothing and scratching on Coal Measures sandstone
Glacial Geology
Glacial smoothing and scratching on Coal Measures sandstone, Nay Aug Park, Scranton.
Glacial topography
Glacial topography
Glacial Geology
Glacial topography, Kettle Lake
Granite boulders, Hickory Run
Granite boulders, Hickory Run
Glacial Geology
Granite boulders, Hickory Run, Mount Jackson.
Granite erratics near Jamesville
Granite erratics near Jamesville
Glacial Geology
Granite erratics near Jamesville
Gravel and silt covered plain
Gravel and silt covered plain
Glacial Geology
Gravel and silt covered plain at 483 feet. See gravel near post hole. On highway east of Thompsontown.
Gravel at bottom of filling in old pre-Illinoian channel of Monongahela River
Gravel at bottom of filling in old pre-Illinoian channel of Monongahela River
Glacial Geology
Gravel at bottom of filling in old pre-Illinoian channel of Monongahela River, bottom at 900 feet above tide. Near bridge over Pennsylvania Railroad on Millvale Avenue, Pittsburgh.