| Reference | {Deposit:: CONNOLLY, J. P., AND *ARRA, C. C., 1929, THE MINERAL WEALTH OF THE BLACK HILLS: SOUTH DAKOTA SCHOOL MINES BULL. 16.}{Deposit:: L. R. PAGE AND OTHERS, 1953, PEGMATITE INVESTIGATIONS 1942 - 45, BLACK HILLS, SOUTH DAKOTA: U.S. GEOLOGICAL SURVEY PROF. PAPER 247}{Production:: CONNOLLY, J.P., AND *ARRA, C.C., 1929, S. DAK. SCH. MINES BULL. 16, P. 259.} |