| Reference | {Deposit:: CLABAUGH, S. E., AND ARMSTRONG, F. C., 1950, CORUNDUM DEPOSITS OF GALLATIN AND MADISON COUNTIES, MONT.: U.S. GEOLOGICAL SURVEY BULL. 969 - B.}{Deposit:: HEINRICH, E.W., 1948, DEPOSITS OF THE SILLIMANITE GROUP OF MINERALS SOUTH OF ENNIS, MADISON CO, MONT., MONT. BUR. OF MINES & GEOL., MISC. CONT. 10, P. 18}{Deposit:: USBM INF CIRC 7641, P. 45.}{Deposit:: 1950 COMPILE CLABAUGH, ARMSTRONG, BULL 969-} |