| Reference | {Deposit:: MONTANA INDUSTRIAL MINERALS, MINOBRAS, 1975, P. 13.}{Deposit:: POPOFF, C.C., 1965, AN EVALUATION OF THE WESTERN PHOSPHATE}{Deposit:: INDUSTRY AND I* RESOURCES, PT. 2, MONTANA, USBM}{Deposit:: RI 6611, P. 88.}{Deposit:: LUFT, S., 1958, NORTHERN PACIFIC RAILWAY CO. PROPERTIES AND}{Deposit:: INDUSTRIAL DEVELOPMENT DEPT. PHOSPHATE REPORT, P. 69.}{Deposit:: USBM MRB RPT 113, P. 59.} |