| Lat / long: | 45.61797, -111.2814 |
| Primary: | Corundum |
| Secondary: | Kyanite |
| Ore: | Corundum, Sillimanite |
| Orebody form: | LENS |
| Operation type: | Unknown |
| Deposit type: | Metamorphic |
| Production size: | Small |
| Development status: | Past Producer |
| First production started: | 1902 |
| Host type: | Gneiss |
| Associated type: | Pegmatite |
| MRDS | DC11236 |
| DEP | 10019723 |
| Reference | {Deposit:: CLABAUGH, S.E., ARMSTRONG, F.C., 1950, CORUNDUM DEPOSITS OF GALLATIN AND MADISON COUNTIES, MONT., USGS BULL 969-B, P. 45}{Deposit:: HEINRICH, E.W., 1948, DEPOSITS OF THE SILLIMANITE GROUP OF MINERALS SOUTH OF ENNIS, MADISON COUNTY, MONT, MONT. BUR. OF MINES & GEOL, MISC. CONT 10.}{Deposit:: KNECHTEL, M.M., ET AL, 1946, WRITTEN COMM.}{Deposit:: CONSV. DIV. COMP. DATE, 01-09-1962}{Deposit:: 1950 COMPILE CLABAUGH, ARMSTRONG, BULL 969-} |
| Reporter | Unknown, Doyle, Brien (Wells, John) |