Mine · Frederick County, Virginia, United States
Winchester Plant
Winchester Plant is a mine in Frederick County, Virginia, United States, owned by Carmeuse Holding SA.
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 | Frederick 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 | lime (mainly lime) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Owner | Carmeuse Holding SA (controls the operator) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Operator | O-N Minerals (Chemstone Company) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Employees | 103 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 | 39.2528, -78.0892 | 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
Carmeuse Holding SA owns 9 of the 2,675 mines in the United States in our data with a named owner; 34 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% |
| Carmeuse Holding SA | 35th | 9 | 0.34% |
Nearby
Within 50 km of this mine: 8 data centers and 3 power plants (1 operating, 1,472 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 |
|---|---|---|---|---|
| Cardinal Energy Corporation | Data center | — | — | 31 km |
| Middletown Data Center | Data center | — | — | 31 km |
| Warren County | Power plant | 1,472 MW | Operating | 32 km |
| Parks Valley Energy LLC | Power plant | 150 MW | Planned | 33 km |
| Bedington Energy Facility, LLC | Power plant | 100 MW | Planned | 36 km |
| Morgan Wireless | Data center | — | — | 44 km |
Owner, operator and place
More from Carmeuse Holding SA
Other mines in Virginia
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.
- Virginia DEQ issued data center air permits. Virginia DEQ issued data center air permits, Public records.