Pennsylvania Geological Survey - Historical Photographs

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  • Location Covered = Allegheny

About This Collection

This collection includes photographs from the Pennsylvania Geological Survey Historical Photographs Collection.

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770 foot terrace of Allegheny River gravel
Across early Monongahela Channel of early glacial age
Across early Monongahela Channel of early glacial age
Across early Monongahela Channel of early glacial age
Across early Monongahela Channel of early glacial age
All that is left of many McKeesport "boom" wells
Allegheny River
Ames limestone
Ames limestone
Ames limestone along Guyasuta Run
Ames limestone and 12-inch Harlem coal
Ames limestone horizon
Approaching Lock No. 2 on Monongahela River above Pittsburgh
Base of Morgantown sandstone
Base of Morgantown sandstone
Bastard coal and rooster coal
Beginning excavation for University of Pittsburgh Memorial Building, Pittsburgh
Beginning excavation for University of Pittsburgh Memorial Building, Pittsburgh
Bell plane tabling
Bend in Turtle Creek - Pennsylvania Railroad yards