| Lat / long: | 38.79306, -105.59586 |
| Primary: | Feldspar, Mica, Beryllium, Niobium (Columbium) |
| Secondary: | Tantalum |
| Tertiary: | Titanium, Metal, Uranium, Thorium, Tin, Bismuth |
| Ore: | Beryl, Bismutite, Columbite, Microcline, Monazite |
| Gangue: | Apatite, Garnet, Plagioclase, Quartz, Schorlite |
| Orebody form: | OVOID LENS |
| Other material: | Muscovite |
| Discovery year: | 1908 |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| First production started: | 1908 |
| Host rock: | Biotite Gneiss |
| Host type: | Gneiss,Granite |
| Structure: | Thirty Nine Mile Volcanic Field, Guffey Volcanic Center, Currant Creek Fault Zone, Other Faults |
| Tectonic: | Central Cordillera, Southern Rocky Mountains |
| MRDS | D009084 |
| DEP | 10013023 |
| Reference | {Deposit:: HEINRICH, E.W. AND BEVER, J.E., 1957, RADIOACTIVE MINERAL OCCURRENCES IN THE GUFFEY AREA, PARK AND FREMONT COUNTIES, COLORADO: COLORADO SCHOOL MINES QUARTERLY, V.52, NO. 4, P. 23-35.}{Deposit:: HEINRICH, E.W., 1981, PRECAMBRIAN TUNGSTEN AND COPPER-ZINC SKARN. DEPOSITS OF SOUTH-CENTRAL COLORADO: CGS RESOURCE SERIES 21, 115 P.}{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.}{Deposit:: HANLEY, J.B., AND OTHERS, 1950, PEGMATITE INVESTIGATIONS IN COLORADO, WYOMING, AND UTAH, 1942-1944: USGS PROF. PAPER 227, P. 105-107} |
| Reporter | Collins, Donna B. |