Reference | {Deposit:: GATHRIGHT, T.M., II, HENIKA, W.S., AND SULLIVAN, J.L., III, 1978, GEOLOGY OF THE GROTTOES QUADRANGLE, VIRGINIA: VDMR PUB 10.}{Deposit:: HARDER, E.C., 1909, THE IRON ORES OF THE APPALACHIAN REGION IN VIRGIA: USGS BULL 380, PP. 215-254.} |