Boron-Borates, Halite past producer · Lake County, California
| State | California |
| County | Lake |
| Coordinates | 38.96655, -122.66774 |
| Primary | Boron-Borates, Halite |
| Secondary | Sodium, Cobalt |
| Status | Past Producer |
| First Production | 1864 |
| Last Production | 1874 |
| Discovery Year | 1856 |
| Data Source | USGS MRDS |
| Source ID | 10055376 |
| Site | Distance | Commodity | Status |
|---|---|---|---|
| Cinder Products Company | 0.8 mi | Pumice | Producer |
| Unknown near Clearlake, CA | 0.9 mi | Chromium | Occurrence |
| Rodger Hellgren Sand and Gravel | 1.0 mi | Sand and Gravel, Construction | Producer |
| Unnamed Location near Clearlake, CA | 1.1 mi | Chromium | Occurrence |
| Christianson Tract | 1.1 mi | Occurrence | |
| Clearlake Highlands Pit | 1.1 mi | Sand and Gravel, Construction | Producer |
| Red Rock Quarry | 1.2 mi | Pumice | Producer |
| Christienson Tract | 1.3 mi | Copper | Unknown |
| Coleman Pumice | 1.4 mi | Pumice | Unknown |
| Unknown near Clearlake, CA | 1.5 mi | Stone, Dimension | Occurrence |
| Red Lava Pit and Mill | 1.5 mi | Pumice | Producer |
| Big Borax Lake | 1.6 mi | Stone | Occurrence |
This mine is a past producer — it was once operational but is no longer actively mining. Past producer sites may still have environmental impacts including disturbed land, tailings piles, and potential water quality effects. Some past producer sites have been reclaimed, while others remain as-is. Check with your state mining or environmental agency for current site conditions.