| Lat / long: | 37.94529, -106.30949 |
| Primary: | Gold, Silver |
| Tertiary: | Lead, Molybdenum, Copper |
| Ore: | Cerargyrite, Gold, Wad |
| Gangue: | Beidellite, Magnetite, Malachite, Quartz |
| Discovery year: | 1886 |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| Host rock: | Biedell Quartz Latite |
| Host type: | Quartz Latite |
| Associated rock: | Biedell Quartz Latite |
| Associated type: | Quartz Latite |
| Structure: | San Juan Volcanic Field, Rio Grande Rift, Biedell-Klondike Fault, Esperanza Fault Zone, Biedell Stock |
| Tectonic: | Central Cordillera (Southern Rocky Mtns) |
| Alteration processes: | Pervasive Propylitization; Locally Intense Argillization; Kaolinitization, Silicification |
| MRDS | D008931 |
| DEP | 10012914 |
| Reference | {Deposit:: LARSEN, E.S., JR., AND CROSS, WHITMAN, 1956, GEOLOGY AND PETROLOGY OF THE SAN JUAN REGION, SOUTHWESTERN COLORADO: USGS PROF. PAPER 258, P. 83-86.}{Deposit:: OSTERWALD, E.J., 1977, THE BEIDELL AND SANDERSON VOLCANIC CENTERS, SAGUACHE COUNTY, COLORADO: COLORADO STATE UNIV. M.S. THESIS, 145 P.} |
| Reporter | Schwochow, Stephen D. |