Pennsylvania Geological Survey -
Historical Photographs
Pennsylvania Geological Survey -
Historical Photographs
Pennsylvania Geological Survey - Historical Photographs 
This collection includes photographs from the Pennsylvania Geological Survey Historical Photographs Collection. These photos were taken in Pennsylvania by Survey geologists and staff members, dating as far back as the early 20th century. The collection includes photographs of the state’s geologic features, cities and towns, and of the sites and activities of Pennsylvania’s quarrying, mining, and oil and gas drilling industries. This collection is not yet complete and will continue to grow as additional images are cataloged.
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