Pennsylvania Geological Survey - Historical Photographs

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This collection includes photographs from the Pennsylvania Geological Survey Historical Photographs Collection.
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Active quarry
Active quarry
Nonmetallic Mineral Resources
Active quarry, Elk Run, near Ironville.
Adams Memorial Chapel
Adams Memorial Chapel
Cities, Towns, and Buildings
Adams Memorial Chapel, Pocono (?) sandstone, Westfield., Fig. 152
Adams Memorial Chapel
Adams Memorial Chapel
Cities, Towns, and Buildings
Adams Memorial Chapel, Pocono (?) sandstone, Westfield.
Adjusting helmet
Adjusting helmet
Field Conferences and Other Meetings
Adjusting helmet, Halberstadt party. Halberstadt, Mendenhall, G. O. Smith, Peck, Parker in right foreground.
After blast in Triassic sediments to widen curve in highway
After blast in Triassic sediments to widen curve in highway
Sedimentation
After blast in Triassic sediments to widen curve in highway south of New Cumberland
Air pump with old bull wheel in background
Air pump with old bull wheel in background
Nonmetallic Mineral Resources
Air pump with old bull wheel in background, ridge east of Bradford.
Albion Quarry
Albion Quarry
Nonmetallic Mineral Resources
Albion Quarry, Pen Argyl.
Albion Quarry
Albion Quarry
Nonmetallic Mineral Resources
Albion Quarry, Pen Argyl.
Albion Quarry looking northwest
Albion Quarry looking northwest
Igneous and Metamorphic
Albion Quarry looking northwest, 480 feet deep (under water). Kittatinny Mountain in background
Albion Quarry looking westward
Albion Quarry looking westward
Igneous and Metamorphic
Albion Quarry looking westward
Albion Quarry (note bedding)
Albion Quarry (note bedding)
Nonmetallic Mineral Resources
Albion Quarry (note bedding), Pen Argyl.
Alex Fire Clay Quarry
Alex Fire Clay Quarry
Nonmetallic Mineral Resources
Alex Fire Clay Quarry pit in Shriver, upper beds Ridgeley
Alexander Caverns
Alexander Caverns
Caves
Alexander Caverns, showing nests of calcite concretions.
All that is left of many McKeesport "boom" wells
All that is left of many McKeesport "boom" wells
Nonmetallic Mineral Resources
All that is left of many McKeesport "boom" wells, at north end of Riverton Bridge, McKeesport.
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
Allegheny Front
Allegheny Front
Topography
Allegheny Front, view east of south hill. From near location of card #1115., 18-22
Allegheny Front, from Penn Highway
Allegheny Front, from Penn Highway
Topography
Allegheny Front, from Penn Highway west of Duncansville, Blair County.
Allegheny Mountain
Allegheny Mountain
Topography
Allegheny Mountain
Allegheny Mountain
Allegheny Mountain
Topography
Allegheny Mountain, north from head of Wambaugh Creek, Allegheny Township
Allegheny Mountain and Deeters Gap
Allegheny Mountain and Deeters Gap
Geomorphology
Allegheny Mountain and Deeters Gap from east near Dividing Ridge