| Reference | {Deposit:: OFFICE OF ORE EST MINES DIRECTORY U OF MN 19}{Deposit:: PART OF BUTLER TACONITE OPERATIONS}{Deposit:: G N IRON ORE PROP BUTLER BROS 1968}{Reserve-Resource:: MINERAL RESOURCES RESEARCH CENTER. MINNESOTA MINING}{Reserve-Resource:: DIRECTORY - 1981, ED. BY W.D. TRETHEWAY. UNIV. OF MINN.,}{Reserve-Resource:: MINNEAPOLIS, MINN., 1981, P. 131} |