Reference | {Deposit:: BUTTS, CHARLES, 1933, GEOLOGIC MAP OF THE APPALACHIAN VALLEY IN VIRGINIA: VIRGINIA GEOLOGICAL SURVEY, 1 SHEET, SCALE 1:250,000.}{Deposit:: CURRIER, L.W., 1935, ZINC AND LEAD REGION OF SOUTHWESTERN VIRGINIA: VIRGINIA GEOLOGICAL SURVEY BULLETIN 43, 122 P.}{Deposit:: 1933 GEOLMAP VA. GEOL. SURV.: ISSUED MAP} |