Mine · San Juan County, New Mexico, United States
San Juan Mine 1
San Juan Mine 1 is an idle mine in San Juan County, New Mexico, United States, owned by Westmoreland Mining Holdings LLC.
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 Juan County | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Status | Idle (nonproducing) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Commodities | coal (mainly coal) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Owner | Westmoreland Mining Holdings LLC (controls the operator) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Operator | Westmoreland San Juan Mining LLC | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 1,448,638 t/year (in 2022) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 1,426,336 t/year (in 2021) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Employees | 59 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 | 36.8500, -108.3750 | 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.
Request researchHow its owner compares
Westmoreland Mining Holdings LLC owns 6 of the 2,675 mines in the United States in our data with a named owner; 54 owners have more. Counts cover the mines in our data that name an owner, holder or operator; an asset with several owners counts for each.
| Owner in United States | Rank | Mines | Share |
|---|---|---|---|
| Alpha Metallurgical Resources Inc | 1st | 56 | 2.1% |
| Sev.en Global Investments a.s. | 2nd | 50 | 1.9% |
| Rosebud Mining Company | 3rd | 40 | 1.5% |
| Martin Marietta Materials, Inc. | 4th | 29 | 1.1% |
| Metinvest B V | 4th | 29 | 1.1% |
| Westmoreland Mining Holdings LLC | 55th | 6 | 0.22% |
Timeline
Dated facts about this mine from its sources, oldest first.
- Westmoreland Mining Holdings LLC on record as owner
- Production: 1,426,336 t/year
- Production: 1,448,638 t/year
Nearby
Within 50 km of this mine: 36 water rights and 8 power plants (1 operating, 1,636 MW), measured from the coordinates in the facts above. The table shows the nearest 6, up to 3 per kind.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| San Juan | Power plant | 1,848 MW | Closed | 7.9 km |
| Rockmont Solar and Storage Project | Power plant | 130 MW | Planned | 8.2 km |
| Four Mile Mesa Solar, LLC | Power plant | 200 MW | Under construction | 9.0 km |
| North Juniper Impoundment water right SJ-02197 | Water right | — | — | 10 km |
| Retention Dam L water right SP-02838 | Water right | — | — | 11 km |
| Jewett Valley Ditch water right SD-00072-1 | Water right | — | — | 12 km |
Owner, operator and place
More from Westmoreland Mining Holdings LLC
Other mines in New Mexico
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.
- New Mexico Office of the State Engineer points of diversion (WATERS). New Mexico Office of the State Engineer points of diversion (WATERS), Terms not verified.