Mine · San Bernardino County, California, United States
Mt Pass Mine & Mill
Mt Pass Mine & Mill is a mine in San Bernardino County, California, United States, owned by MP Materials Corporation.
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Location | San Bernardino County | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Status | Operating (active) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Commodities | rare earths (mainly rare earths) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Owner | MP Materials Corporation (controls the operator) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Operator | MP Mine Operations, LLC. | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Employees | 822 people (annual average, in 2025) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Mine type | Surface | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Coordinates | 35.4719, -115.5744 | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
Research on this mine and its owner.Who owns it up to the parent company, its permits, resources and offtake, and an introduction to the owner.
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Within 50 km of this mine: 18 water rights and 1 power plant (688 MW), measured from the coordinates in the facts above. The table shows the nearest 4, up to 3 per kind.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Ivanpah Valley groundwater water right 51870 | Water right | 546 acre-ft/year | Permitted | 17 km |
| Ivanpah Valley groundwater water right 52686 | Water right | 205 acre-ft/year | Permitted | 17 km |
| Ivanpah Valley groundwater water right 63594 | Water right | 205 acre-ft/year | Permitted | 17 km |
| Higgins Generating Station | Power plant | 688 MW | Operating | 25 km |
Owner, operator and place
Other mines in California
Data on this page
- Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
- MSHA Mines Data Set. MSHA Mines Data Set, Public domain.
- Nevada Division of Water Resources water rights points of diversion. Nevada Division of Water Resources water rights points of diversion, CC0 1.0 Universal.