| Lat / long: | 39.7086, -105.3803 |
| Primary: | Feldspar |
| Tertiary: | Tantalum, Copper |
| Ore: | Cleavelandite, Malachite, Microcline, Microlite, Tantalite |
| Gangue: | Biotite, Garnet, Quartz |
| Orebody form: | POD |
| Discovery year: | 1939 |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| First production started: | 1941 |
| Host rock: | Idaho Springs Formation---Hornblende Gneiss And Amphibolite |
| Host type: | Gneiss |
| Associated rock: | Pegmatite |
| Associated type: | Pegmatite |
| Structure: | Front Range Uplift, Denver Basin, Floyd Hill Fault Zone |
| Tectonic: | Central Cordillera (Southern Rocky Mtns) |
| MRDS | D010197 |
| DEP | 10013738 |
| Reference | {Deposit:: BOOS, M.F., 1954, GENESIS OF PRECAMBRIAN PEGMATITES IN THE DENVER MOUNTAIN PARKS AREA, COLORADO: GSA BULL., V. 65, P. 115-142}{Deposit:: SHERIDAN, D.M., AND MARSH, S.P., 1976, GEOLOGIC MAP OF THE SQUAW PASS QUADRANGLE, CLEAR CREEK, JEFFERSON, AND GILPIN COUNTIES, COLORADO: USGS MAP GQ-1337}{Deposit:: MEEVES, H.C., AND OTHERS, 1966, RECONNAISSANCE OF BERYLLIUM-BEARING PEGMATITE DEPOSITS IN SIX WESTERN STATES: USBM IC-8298, P. 29.} |
| Reporter | Schwochow, Stephen D. |