| Reference | {Deposit:: POPOFF, C.C., 1965, AN EVALUATION OF THE WESTERN PHOSPHATE}{Deposit:: INDUSTRY AND I* RESOURCES,PT 2, MONTANA, USBM RI 6611.}{Deposit:: LUFT, STANLEY, 1958, NORTHERN PACIFIC RAILWAY COMPANY}{Deposit:: PROPERTIES AND INDUSTRIAL DEVELOPMENT DEPT., PHOSPHATE REPT.}{Deposit:: CRESSMAN,E.R., 1953, STRATIGRAPHIC SECTIONS OF THE}{Deposit:: PHOSPHORIA FM. IN MONTANA, 1949-50, PT. 7: USGS CIRC. 302, 2}{Deposit:: SWANSON,R.W.,1970, MINERAL RESOURCES IN PERMIAN ROCKS OF S.W}{Deposit:: MONTANA, USGS PROF. PAPER 313-E.}{Geology:: MONTANA INDUSTRIAL MINERALS,MINOBRAS 1975 PG 13} |