Reference | {Deposit:: U.S. GEOLOGICAL SURVEY BULLETIN 795-G, 1928, P.}{Deposit:: LUFT, STANLEY, 1958, NORTHERN PACIFIC RAILWAY CO.,}{Deposit:: PROPERTIES AND INDUSTRIAL DEVELOPMENT DEPT., PHOSHPATE}{Deposit:: REPORT.}{Deposit:: U.S. BUREAU OF MINES RI 6611, 1965.}{Deposit:: MINOBRAS, 1975, MONTANA INDUSTRIAL MINERALS, P. 32.} |