| Reference | {Deposit:: BARNES, C.W., 1946, GEOLOGY OF MANGANESE DEPOSITS, WALNUT GROVE, ALABAMA: VIRGINIA UNIV. MASTERS THESIS, 33 P.}{Deposit:: PIERCE, W.G., 1944, COBALT BEARING MANGANESE DEPOSITS OF ALABAMA, GEORGIA AND TENNESSEE: US GEOL SURVEY BULL 940, 265-285 P.}{Deposit:: 1980 RECON AGS}{Deposit:: CLARKE, O M JR, 1980, MANGANESE RESOURCES IN ALABAMA: ALABAMA GEOL SURVEY OPEN FILE} |