1 dataset found
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Federal
Digital Geologic-GIS Map of Hopewell Furnace National Historic Site and Valley Forge National Historical Park, and Vicinity, Pennsylvania (NPS, GRD, GRI, HOFU, VAFO, HFVF digital map) adapted from a Pennsylvania Geological Survey Map by Berg, Edmunds, Geyer and others, compilers (1980)
Department of the Interior —
The Digital Geologic-GIS Map of Hopewell Furnace National Historic Site and Valley Forge National Historical Park, and Vicinity, Pennsylvania is composed of GIS data...
1 dataset found