Pennsylvania Geological Survey - Historical Photographs

Active Filters:
  • Date = 1952
  • Subject = Structure-Folds

About This Collection

This collection includes photographs from the Pennsylvania Geological Survey Historical Photographs Collection.
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Drag folds in Pocono sandstone
Drag folds in Pocono sandstone
Structure-Folds
Drag folds in Pocono sandstone, one mile north of Bolivar
Tightly folded limestone and dolomite beds
Tightly folded limestone and dolomite beds
Structure-Folds
Tightly folded limestone and dolomite beds in the Buffalo Creek Member, along Cornwall Railroad