| Lat / long: | 38.73667, -105.57975 |
| Primary: | Gold, Copper |
| Secondary: | Feldspar, Mica |
| Tertiary: | Tungsten, Zinc |
| Ore: | Bornite, Chalcopyrite, Gold, Muscovite, Scheelite |
| Gangue: | Actinolite, Anthophyllite, Chlorite, Clinozoisite, Epidote, Garnet, Magnetite, Quartz, Sphene |
| Orebody form: | LENSOID, TABULAR, POD-LIKE |
| Discovery year: | 1939 |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| Host rock: | Biotite Gneiss, Migmatitic Gneiss |
| Host type: | Gneiss |
| Associated rock: | Boulder Creek Granite, Quartz Monzonite;Rhyolitic And Andesitic Tuff And Tuff Breccia |
| Associated type: | Volcanic Breccia (Agglomerate),Rhyolite,Granite |
| Structure: | Thirtyone Mile Mountain Volcanic Center, Front Range, Currant Creek Fault And Related Nw-Trending Faults |
| Tectonic: | Central Cordillera, Southern Rocky Mtns |
| MRDS | D009204 |
| DEP | 10101785 |
| Reference | {Deposit:: BELSER, CARL, 1956, TUNGSTEN POTENTIAL IN CHAFFEE, FREMONT, GUNNISON, LAKE, LARIMER, PARK, AND SUMMIT COUNTIES, COLORADO: USBM INFORMATION CIRCULAR 7748, P.19-26.}{Deposit:: EPIS, R.C., WOBUS, R.A., AND SCOTT, G.R., 1979, GEOLOGIC MAP OF THE BLACK MOUNTAIN QUADRANGLE, FREMONT AND PARK COUNTIES, COLORADO: USGS MAP I-1195, 1:62,500.}{Deposit:: HEINRICH, E.W., 1981, PRECAMBRIAN TUNGSTEN AND COPPER-ZINC SKARN DEPOSITS OF SOUTH-CENTRAL COLORADO: CGS RESOURCE SERIES 21, 115 P.}{Deposit:: HANLEY, J.B., HEINRICH, E.W., PAGE, L.R., 1950, PEGMATITE INVESTIGATIONS IN COLORADO, WYOMING, AND UTAH, 1942-1944: USGS PROFESSIONAL PAPER 227, P. 105} |
| Reporter | Collins, Donna B. |