| Location: | Boulder County, Colorado, United States, North America |
| Lat / long: | 40.16665, -105.43392 |
| dep_id: | 10009444 |
| mrds_id: | D002446 |
| Commodity type: | metallic and nonmetallic |
| Major mineral: | Beryllium, Mica, Tantalum |
| Operation type: | Unknown |
| Production size: | Small ammount of material produced |
| Development status: | Producer |
| ore: | Beryl, Columbite, Tantalite |
| Reporter: | Hasler, J. William |
| hrock_type: | Schist |
| References: |
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