| Lat / long: | 38.255, -107.05342 |
| Primary: | Iron, Vermiculite |
| Secondary: | Manganese |
| Tertiary: | Zeolites, REE, Vanadium, Niobium (Columbium), Zinc, Thorium, Titanium, Uranium |
| Operation type: | Unknown |
| Deposit type: | CARBONATITE, MAGMATIC SEGREGATION; DISSEMINATION; DISCORDANT INTRUSIVE; CHEMICAL PRECIPITATE; WEATHERING RESIDUAL |
| Production size: | Large |
| Development status: | Prospect |
| First production started: | 1880 |
| Last production ended: | 1961 |
| Structure: | IRON HILL ALKALIC COMPLEX, CIMARRON FAULT, POWDERHORN STOCK, GUNNISON UPLIFT, SAN JUAN VOLCANIC FIELD |
| MRDS | D011410 |
| DEP | 60000386 |
| Reference | OBSERVATION |