| Location: | Sonoma County, California, United States, North America |
| Lat / long: | 38.65294, -123.40248 |
| dep_id: | 10033630 |
| mrds_id: | M020242 |
| Commodity type: | metallic |
| Major mineral: | Manganese |
| Operation type: | Unknown |
| Production size: | Unknown |
| Development status: | Producer |
| Reporter: | Oland, G. P. (Orris, Greta J.), Mason, George, Killman, K.; Albers, J. |
| References: |
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