| Lat / long: | 38.33334, -105.72391 |
| Primary: | Uranium |
| Ore: | Autunite, Uraninite |
| Gangue: | Kaolinite, Hematite, Limonite |
| Orebody form: | fissure vein, pipe, stockwork |
| Operation type: | Surface-Underground |
| Production size: | Small |
| Development status: | Past Producer |
| Host rock: | Migmatitic Gneiss |
| Host type: | Gneiss |
| Associated rock: | Granodiorite Of Boulder Creek Age |
| Associated type: | Diorite |
| Structure: | Sangre De Cristo Range, Shear Zone Localized Ore, But Deposit Occurs Near Terminations Of Two Large Fault Zones: One On East Flank Of Sangre De Cristo Mtns (Trends Nw), One Trending North, North Of Cotopaxi (Cotopaxi Fault); Numerous Small Cross Faults; Between Alvarado Fault, Pleasant Valley Fault; Near Trend Of Oak Creek Paleovalley Of Oligocene To Miocene Age |
| Tectonic: | Central Cordillera (Southern Rocky Mtns) |
| Alteration processes: | Kaolinization |
| MRDS | D009465 |
| DEP | 10013263 |
| Reference | {Deposit:: NELSON-MOORE, J.L., COLLINS, D.B. AND HORNBAKER, A.L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULLETIN 40, P. 149-150}{Deposit:: TAYLOR, R.B., SCOTT, G.R., WOBUS, R.A. AND EPIS, R.C., 1975, RECONNAISSANCE GEOLOGIC MAP OF THE COTOPAXI 15-MINUTE QUADRANGLE, FREMONT AND CUSTER COUNTIES, COLORADO: USGS MAP I-900, 1:62,500.}{Production:: NELSON-MOORE AND OTHERS, 1978} |
| Reporter | Collins, Donna B. |