| Location: | Lincoln County, Montana, United States, North America |
| Lat / long: | 48.43348, -115.40853 |
| dep_id: | 10070453 |
| mrds_id: | W013395 |
| Commodity type: | nonmetallic |
| Major mineral: | Vermiculite |
| Trace mineral: | Feldspar |
| Operation type: | Unknown |
| Production size: | Production occurred |
| Development status: | Producer |
| gangue: | Biotite, Pyroxene |
| orebody_fm: | ROUGHLY CYLINDRICAL |
| work_type: | Surface |
| alteration: | Biotite To Vermiculite |
| conc_proc: | Supergene Alteration Of Biotite To Vermiculite |
| ore_ctrl: | Abundance Of Biotite Now Altered To Vermiculite |
| Reporter: | Berg, Richard B. (Krohn, D. H.) |
| hrock_unit: | Wallace Formation |
| hrock_type: | Pyroxenite |
| Structure: | Northwest Trending Faults And Folds In Rocks Of Belt Supergroup, Northwest Trending Syncline In Wallace Fm. Of Belt Supergroup. |
| Year first produced: | 1925 |
| disc_yr: | 1915 |
| discr: | E. N. Alley |
| References: |
- Deposit:: BOETTCHER, A. L., 1967, THE RAINY CREEK ALKALINE ULTRAMAFIC IGNEOUS COMPLEX NEAR LIBBY, MONTANA, JOUR. GEOLOGY, V. 75, NO. 5, P. 526 - 553.
- Deposit:: JOHNS, W. M., 1970, GEOLOGY AND MINERAL DEPOSITS OF LINCOLN AND FLATHEAD COUNTIES; MONT. BUR. OF MINES AND GEOL. BULL. 79, P. 146 - 149.
- Production:: BUSCH, A. L. (IN PRESS), VERMICULITE IN THE UNITED STATES: IN PROCEEDINGS
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