| Lat / long: | 44.38329, -104.03391 |
| Primary: | Tin, Tantalum, Niobium (Columbium), Tungsten, Lithium |
| Ore: | Spodumene |
| Operation type: | Unknown |
| Production size: | Large |
| Development status: | Producer |
| Host type: | Schist,Pegmatite |
| MRDS | D002994 |
| DEP | 10009788 |
| Reference | USGS BULL. 92 |
| Reporter | Hasler, J. William |