| Location: | Larimer County, Colorado, United States, North America |
| Lat / long: | 40.53692, -105.3767 |
| dep_id: | 10013811 |
| mrds_id: | D010316 |
| Commodity type: | metallic and nonmetallic |
| Major mineral: | Mica, Beryllium |
| Trace mineral: | Lithium, Niobium (Columbium), Tantalum |
| Operation type: | Unknown |
| Production size: | Small ammount of material produced |
| Development status: | Producer |
| ore: | Beryl, Muscovite, Spodumene |
| gangue: | Albite, Cleavelandite, Garnet, Purpurite, Sericite, Tourmaline |
| orebody_fm: | LENTICULAR |
| work_type: | Surface/Underground |
| alteration: | Tourmalinization Of Schistose Wallrock; Albite, Cleavelandite, And Sericite Replacement Of Spodumene |
| Reporter: | Schwochow, Stephen D. |
| hrock_unit: | Metasedimentary Rocks-Quartz-Biotite Schist;Pegmatite |
| hrock_type: | Schist |
| arock_unit: | Pegmatite;Tonalite (Quartz Diorite) |
| arock_type: | Tonalite,Pegmatite |
| Structure: | Front Range Uplift, Thompson Canyon Fault, Mt Olympus Batholith, Ne-Trending Folds |
| tectonic: | Central Cordillera (Southern Rocky Mtns) |
| Year first produced: | 1884 |
| disc_yr: | 1884 |
| References: |
- Deposit:: THURSTON, W.R., 1955, PEGMATITES OF THE CRYSTAL MOUNTAIN DISTRICT, LARIMER COUNTY, COLORADO: USGS BULL. 1011, 185 P., 13 PLS.
- Deposit:: HANLEY, J.B., AND OTHERS, 1950, PEGMATITE INVESTIGATIONS IN COLORADO, WYOMING, AND UTAH, 1942-1944: USGS PROF. PAPER 227, P. 88-90, PL. 11.
- Deposit:: STERRETT, D.B., 1923, MICA DEPOSITS OF THE UNITED STATES: USGS BULL. 740, P. 59-61.
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