| Reference | {Deposit:: MONTANA INDUSTRIAL MINERALS,MINOBRAS 1975 PG 13}{Deposit:: SWANSON, R.W., 1970, MINERAL RESOURCES IN PERMIAN ROCKS}{Deposit:: OF SOUTHWEST MONTANA, USGS PROF PAPER 313-E, P. 707.}{Deposit:: USBM RI 6611, P. 99.}{Deposit:: USGS CIR. 260, P. 16.}{Deposit:: USBM MRB RPT 113, P. 75.} |