| Lat / long: | 39.98027, -105.48448 |
| Primary: | Tungsten |
| Ore: | Ferberite |
| Operation type: | Unknown |
| Production size: | Medium |
| Development status: | Producer |
| Host type: | Pegmatite |
| MRDS | D003618 |
| DEP | 10010112 |
| Reference | USGS PROF. PAPER 245 , PLATE 2 |
| Reporter | Melton, Greg, Hasler, J. William |