Pennsylvania Geological Survey - Historical Photographs

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  • Contributing Institution = Pennsylvania Geological Survey
  • Date = 1960
  • Location Covered = Centre

About This Collection

This collection includes photographs from the Pennsylvania Geological Survey Historical Photographs Collection.
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Fault face, slickensides on sandstone
Fault face, slickensides on sandstone
Structure-Faults
Fault face, slickensides on sandstone, Houtzdale 7.5-minute quadrangle. V. C. Shepps in photograph