Pennsylvania Geological Survey - Historical Photographs

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About This Collection

This collection includes photographs from the Pennsylvania Geological Survey Historical Photographs Collection.
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Abandoned quarry in Morgantown sandstone
Abandoned quarry in Morgantown sandstone
Stratigraphy
Abandoned quarry in Morgantown sandstone showing cross bedding along State Route 21, one mile west of Sandy Hill.
Abandoned sandstone quarry
Abandoned sandstone quarry
Stratigraphy
Abandoned sandstone quarry, probably Homewood sandstone. One mile north of Leesburg Station on west side of Neshannock Creek, Springfield Township
Acre Rocks on east slope of Big Savage Mountain
Acre Rocks on east slope of Big Savage Mountain
Stratigraphy
Acre Rocks on east slope of Big Savage Mountain west of Kemmell Mills (Pottsville sandstone). Berlin quadrangle
Across French Creek at Franklin
Across French Creek at Franklin
Stratigraphy
Across French Creek at Franklin. Base of section 50' above Corry sandstone. Cuyahoga strata shows limy siltstones common in upper part of that group in Franklin quadrangle
Across valley of East Branch of Tuncangwant Creek
Across valley of East Branch of Tuncangwant Creek
Stratigraphy
Across valley of East Branch of Tuncangwant Creek. Bradford Pressed Brick quarries and plant in distance. Just north of Lewis Run Borough.
Allegheny (?) Formation sandstone
Allegheny (?) Formation sandstone
Stratigraphy
Allegheny (?) Formation sandstone (Jack Brown shown in photograph). Dog's Head, west end of Glade Mountain, Meyersdale quadrangle
Aloe Coal Company strip pit
Aloe Coal Company strip pit
Stratigraphy
Aloe Coal Company strip pit north of Pennsylvania Route 980 at McAdams
Aloe Coal Company strip pit
Aloe Coal Company strip pit
Stratigraphy
Aloe Coal Company strip pit north of Pennsylvania Route 980 at McAdams
An alternative figure showing pinching out of beds
An alternative figure showing pinching out of beds
Stratigraphy
An alternative figure showing pinching out of beds, New Cumberland quadrangle
Alternative figure showing pinching out of beds along dip, also variation in dip
Alternative figure showing pinching out of beds along dip, also variation in dip
Stratigraphy
Alternative figure showing pinching out of beds along dip, also variation in dip. New Cumberland quadrangle
Ames limestone
Ames limestone
Stratigraphy
Ames limestone, half mile east of south end of Riverton Bridge, McKeesport, Pittsburgh quadrangle.
Ames limestone
Ames limestone
Stratigraphy
Ames limestone at a point between Pitcairn and Turtle Creek., Plate VI-A
Ames limestone along Guyasuta Run
Ames limestone along Guyasuta Run
Stratigraphy
Ames limestone along Guyasuta Run, first valley west of Aspinwall, O'Hara Township.
Ames limestone and 12-inch Harlem coal
Ames limestone and 12-inch Harlem coal
Stratigraphy
Ames limestone and 12-inch Harlem coal, one half mile northeast of Millvale, Reserve Township.
Ames limestone horizon
Ames limestone horizon
Stratigraphy
Ames limestone horizon, Tenth Street Bridge, McKeesport.
Annville limestone
Annville limestone
Stratigraphy
Annville limestone, U.S. Steel, Michigan Limestone Division quarry, northeast of Hershey
Annville limestone
Annville limestone
Stratigraphy
Annville limestone, "hanging wall" of East quarry, U.S. Steel, Michigan Limestone Division, northeast of Hershey
Annville limestone
Annville limestone
Stratigraphy
Annville limestone, "hanging wall" of East quarry, U.S. Steel, Michigan Limestone Division, northeast of Hershey
Anorthosite boulders
Anorthosite boulders
Stratigraphy
Anorthosite boulders
Apparent unconformity in Burgoon sandstone
Apparent unconformity in Burgoon sandstone
Stratigraphy
Apparent unconformity in Burgoon sandstone, just at east edge of Ebensburg sheet., 18-20