-
West Virginia Geology - Canaan Valley Bedrock Maps
From the site: "Bedrock geology [map] . . . Created by the WV Geological and Economic Survey (WVGES) in 1999 as part of their ongoing statewide digital geologic mapping project.... -
Digital Bedrock Aquifer Characteristics by Physiographic Section of Pennsylvania
In 2001, the Bureau of Topographic and Geologic Survey (the Bureau) released the Digital Bedrock Geology of Pennsylvania. This dataset was based on Map 1, Geologic Map of...