Mine · Campbell County, Wyoming, United States
Belle Ayr Mine
Belle Ayr Mine is a mine in Campbell County, Wyoming, United States, operated by Eagle Specialty Materials 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 | Campbell 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 | coal (mainly coal) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Operator | Eagle Specialty Materials LLC | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 12,934,533 t/year (in 2022) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 13,108,464 t/year (in 2021) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 13,271,182 t/year (in 2024) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 13,120,896 t/year (in 2025) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Production | 13,752,871 t/year (in 2023) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Employees | 248 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 | 44.1000, -105.3831 | 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
Eagle Specialty Materials LLC operates 2 of the 2,675 mines in the United States in our data with a named owner; 200 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% |
| Eagle Specialty Materials LLC | 201st | 2 | <0.1% |
Timeline
Dated facts about this mine from its sources, oldest first.
- Production: 13,108,464 t/year
- Production: 12,934,533 t/year
- Production: 13,752,871 t/year
- Production: 13,271,182 t/year
- Production: 13,120,896 t/year
Nearby
Within 50 km of this mine: 1 data center and 1 power plant (484 MW), measured from the coordinates in the facts above.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Data center, Campbell County (OSM way 1414729942) | Data center | — | — | 21 km |
| Dry Fork Station | Power plant | 484 MW | Operating | 33 km |
Operator and place
More from Eagle Specialty Materials LLC
- Eagle Butte Minemine
Other mines in Wyoming
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.
- © OpenStreetMap contributors. OpenStreetMap data centers, ODbL 1.0.