Reference | {Deposit:: ERN, E.H., 1968, GEOLOGY OF THE BUCKINGHAM QUADRANGLE, VIRGINIA: VIRGINIA DIVISION OF MINERAL RESOURCES REPORT OF INVESTIGATIONS 15, 45 P.}{Deposit:: ESPENSHADE, G.H., 1954, GEOLOGY AND MINERAL DEPOSITS OF THE JAMES RIVER-ROANOKE RIVER MANGANESE DISTRICT, VIRGINIA: U.S. GEOLOGICAL SURVEY BULLETIN 1008, 155 P.}{Deposit:: 1942 GEOLMAP G.H. ESPENSHADE: ISSUED BULL. 1008.}{Deposit:: 1965 GEOLMAP VA. DIV. MIN. RES: ISSUED REPT. INV. 15.} |