| Reference | {Deposit:: U.S. BUREAU OF MINES RI 6611, 1965, PART 2, P. 110.}{Deposit:: MONTANA INDUSTRIAL MINERALS,MINOBRAS 1975 PG 13}{Deposit:: LUFT,S.,1958, NORTHERN PACIFIC RAILWAY CO. PROPERTIES AND}{Deposit:: INDUSTRIAL DEVELOPMENT DEPT. PHOSPHATE REPORT, P. 102.}{Deposit:: SWANSON, R.W., 1970, MIN. RES. IN PERMIAN ROCKS OF SW}{Deposit:: MONTANA: USGS PROF. PAPER 313-E.}{Deposit:: KLEPPER,M.R., 1953, STRAT. SECS. OF THE PHOSPHORIA FM}{Deposit:: IN MONTANA,1948: USGS CIRC. 260, P. 23.}{Deposit:: MRB 113, P. 85.} |