Mine · Somerset County, Pennsylvania, United States
Langley Mine
Langley Mine is an idle mine in Somerset County, Pennsylvania, United States, operated by Mountaineer Mining 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 |
|---|---|---|
| Name in the source | LANGLEY MINE | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Location | Somerset 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 |
| Operator | Mountaineer Mining Corporation | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 42,277 t/year (in 2021) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 2,222 t/year (in 2023) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 38,610 t/year (in 2022) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Employees | 3 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 | 39.9989, -79.0172 | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
Research on this mine and its operator.Who owns it up to the parent company, its permits, resources and offtake, and an introduction to the operator.
Request researchHow its operator compares
Mountaineer Mining Corporation operates 3 of the 2,675 mines in the United States in our data with a named owner; 139 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.
| Operator 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% |
| Mountaineer Mining Corporation | 140th | 3 | 0.11% |
Timeline
Dated facts about this mine from its sources, oldest first.
- Production: 42,277 t/year
- Production: 38,610 t/year
- Production: 2,222 t/year
Nearby
Within 50 km of this mine: 3 power plants (3,745 MW), measured from the coordinates in the facts above.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Conemaugh | Power plant | 1,963 MW | Operating | 43 km |
| Seward (PA) | Power plant | 585 MW | Operating | 45 km |
| CPV Fairview Energy Center | Power plant | 1,197 MW | Operating | 48 km |
Operator and place
More from Mountaineer Mining Corporation
- Mountaineer #1mine
- Good Hill Minemine
Other mines in Pennsylvania
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.