Reference | {Deposit:: EDMUNDSON, R. S., 1938, BARITE DEPOSITS OF VIRGINIA: VIRGINIA GEOLOGICAL SURVEY BULLETIN 53, 85 P.}{Deposit:: BUTTS, CHARLES, 1933, GEOLOGY MAP OF THE APPALACHIAN VALLEY IN VIRGINIA, VIRGINIA GEOLOGICAL SURVEY BULLETIN 42.}{Deposit:: DIREXPL ? - DUG OPEN CUTS, MINE} |