Reference | {Deposit:: CURRIER, L.W., 1935, ZINC AND LEAD REGION OF SOUTHWESTERN VIRGINIA: VIRGINIA GEOLOGICAL SURVEY BULLETIN 43, 122 P.}{Deposit:: LUTTRELL, G.W., 1966, BASE- AND PRECIOUS-METAL AND RELATED ORE DEPOSITS OF VIRGINIA: DIVISION OF MINERAL RESOURCES, MINERAL RESOURCES REPORT 7, 167 P.}{Deposit:: MCCREATH, A.S., AND *NVILLIERS, E.V., 1887, THE NEW RIVER - CRIPPLE CREEK MINERAL REGION OF VIRGINIA: HARRISBURG, PA., HARRISBURG PUBLISHING CO., 171 P.}{Deposit:: WATSON, T.L., 1907, MINERAL RESOURCES OF VIRGINIA: LYNCHBURG, VA., J.P. BELL, 618 P.}{Deposit:: MCDOWELL, R.C., 1968, STRUCTURAL GEOLOGY OF THE MACKS MOUNTAIN AREA, VIRGINIA: P.H.D. DISSERTATION, VIRGINIA POLYTECHNIC INSTITUTE, 144 P.}{Deposit:: 1902 DIREXPL BERTHA MINERAL CO.: OPERATED FOR ZINC.}{Deposit:: DIREXPL MINE OPERATED FOR IRON PRIOR TO 1887.}{Deposit:: DIREXPL OPERATED IN 194*.}{Production:: WATSON (1907, P. 449, 531)} |