| Lat / long: | 38.75, -105.56725 |
| Primary: | Tungsten, REE |
| Ore: | Allanite, Euxenite, Ilmenite, Monazite |
| Gangue: | Apatite, Bornite, Calcite, Chalcopyrite, Chlorite, Clinozoisite, Copper, Diopside, Epidote, Magnetite, Quartz, Sphalerite, Sphene, Thulite, Zoisite |
| Operation type: | Unknown |
| Production size: | None |
| Development status: | Occurrence |
| Host rock: | Idaho Springs Formation;Idaho Springs Formation |
| Host type: | Gneiss |
| Associated rock: | Boulder Creek;Boulder Creek; |
| Associated type: | Diorite |
| Structure: | Front Range, Thirtynine Mile Volcanic Field, Antelope Mountain And Guffey Volcanic Centers, Currant Creek Fault And Related Nw-Trending Faults |
| Tectonic: | Central Cordillera, Southern Rocky Mountains |
| MRDS | D001082 |
| DEP | 10008730 |
| Reference | {Deposit:: LEMMON, D.M., AND TWETO, O.L., 1962, TUNGSTEN IN THE U.S., USGS MAP, MR-25.}{Deposit:: BELSER, CARL, 1956, TUNGSTEN POTENTIAL IN CHAFFEE, FREMONT, GUNNISON, LAKE, LARIMER, PARK AND SUMMIT COUNTIES, COLORADO: USBM INFORMATION CIRCULAR 7748, P. 7-10.}{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:: EPIS, R.C., WOBUS, R.A., AND SCOTT, G.R., 1979, GEOLOGIC MAP OF THE GUFFEY QUADRANGLE, PARK COUNTY, COLORADO: USGS MAP I-1180, 1:62,500.00}{Deposit:: HEINRICH, E.W., 1981, PRECAMBRIAN TUNGSTEN AND COPPER-ZINC SKARN DEPOSITS OF SOUTH-CENTRAL COLORADO: CGS RESOURCE SERIES 21, 115 P.} |
| Reporter | Elliott, James E., Collins, Donna B., Mosier, Dan |