TY - RPRT TI - Reconnaissance bedrock geologic map of the Keysville 7.5-minute quadrangle, Prince Edward, Charlotte, and Lunenburg Counties, Virginia AU - Paul C. Hackley AU - John D. Peper PY - 1998 DO - 10.3133/ofr98764 UR - https://pubs.usgs.gov/publication/ofr98764 ID - ofr98764 ER -