Pennsylvania Geological Survey - Historical Photographs

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  • Location Covered = Allegheny
  • Subject = Stratigraphy

About This Collection

This collection includes photographs from the Pennsylvania Geological Survey Historical Photographs Collection.
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Ames limestone
Stratigraphy
Ames limestone, half mile east of south end of Riverton Bridge, McKeesport, Pittsburgh quadrangle.
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Ames limestone
Stratigraphy
Ames limestone at a point between Pitcairn and Turtle Creek., Plate VI-A
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Ames limestone along Guyasuta Run
Stratigraphy
Ames limestone along Guyasuta Run, first valley west of Aspinwall, O'Hara Township.
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Ames limestone and 12-inch Harlem coal
Stratigraphy
Ames limestone and 12-inch Harlem coal, one half mile northeast of Millvale, Reserve Township.
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Ames limestone horizon
Stratigraphy
Ames limestone horizon, Tenth Street Bridge, McKeesport.
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Base of Morgantown sandstone
Stratigraphy
Base of Morgantown sandstone above Christy Park.
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Base of Morgantown sandstone
Stratigraphy
Base of Morgantown sandstone, south of White Ash or Sandy Creek., Plate XX-B
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Bastard coal and rooster coal
Stratigraphy
Bastard coal and rooster coal (of Pittsburgh coal, main bed concealed), one mile south of Trestle, Plum Township.
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Birmingham shale
Stratigraphy
Birmingham shale up Patterson Avenue, Christy Park.
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Birmingham shale (top). At 25 feet below, Ames limestone.
Stratigraphy
Birmingham shale (top). At 25 feet below, Ames limestone. At Fried and Reineman packing plant opposite Herr's Island on north side of river, Pittsburgh quadrangle.
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Bluff of Monongahela River showing discordant stratification
Stratigraphy
Bluff of Monongahela River showing discordant stratification, just below first dam and lock, Pittsburgh.
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Bolder lying on shale (elevation 800)
Stratigraphy
Bolder lying on shale (elevation 800). Cut near mouth of Squaw Run.
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Brush Creek limestone exposed at quarry near Wittmer
Stratigraphy
Brush Creek limestone exposed at quarry near Wittmer. New Kensington quadrangle.
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Buffalo sandstone
Stratigraphy
Buffalo sandstone, quarry near Wittmer. New Kensington quadrangle., Plate XIX-B
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Clarksburg limestone and clay along Noblestown Road
Stratigraphy
Clarksburg limestone and clay along Noblestown Road. West bank of Sawmill Run, three quarters of a mile from its mouth, West Side, Pittsburgh.
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Cliff section, Natrona
Stratigraphy
Cliff section, Natrona, Pa. Freeport quadrangle., Note especially the Carmichaels Formation capping the cliff.
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Cliff section, Natrona
Stratigraphy
Cliff section, Natrona, Pa. Freeport quadrangle.
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Close-up of excavation
Stratigraphy
Close-up of excavation, Lower Monongahela Formation. Pittsburgh Coal is in rockfall zone at base of excavation. Route 51 across from Southlands Shopping Center, Jefferson Borough
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Conemaugh rocks (Morgantown? sandstone?)
Stratigraphy
Conemaugh rocks (Morgantown? sandstone?), Bigelow Boulevard, Pittsburgh, Pa. Photographer and date of photograph not known.
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Connellsville sandstone
Stratigraphy
Connellsville sandstone, the appearence is typical. South of White Ash., XIX-A
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