| Reference | {Deposit:: US BUREAU OF MINES, 1954 , BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART I, BUREAU OF MINES INFORMATION CIRCULAR 7688 .}{Deposit:: SMITH, W. C., AND PAGE, L. R., 1941 , TIN-BEARING PEGMATITES OF THE TINTON DISTRICT, LAWRENCE COUNTY, SOUTH DAKOTA, US GEOLOGICAL SURVEY BULLETIN 922-T.} |