Virginia DMME Geology and Mineral Resources Map: An interactive geology map of Virginia from the Department of Mines, Minerals, and Energy.

Geology and Mineral Resources of the Roanoke Area, Virginia: A PDF version of the 1932 Virginia Geological Society Bulletin #34 by Herbert P. Woodward. It is a “…comprehensive discussion of the surface features, rock formations, structure, geologic history, and mineral resources of Roanoke County and adjoining parts of Botetourt, Bedford, Franklin, Floyd, Montgomery, and Craig counties.”

See more on the Resources Page.