Mine · Frederick County, Maryland, United States
Rocky Ridge Plant
Rocky Ridge Plant is a closed mine in Frederick County, Maryland, United States, owned by Brickworks Limited.
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 | Closed (abandoned) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Commodities | shale (mainly shale) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Owner | Brickworks Limited (controls the operator) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Operator | Glen-Gery Corporation | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Employees | 4 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 | 39.6019, -77.3283 | 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
Brickworks Limited 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% |
| Brickworks Limited | 35th | 9 | 0.34% |
Nearby
Within 50 km of this mine: 2 data centers and 2 power plants (1 operating, 898 MW), measured from the coordinates in the facts above.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Data center, Frederick County (OSM way 178331621) | Data center | — | — | 26 km |
| Hunterstown Power Plant | Power plant | 898 MW | Operating | 33 km |
| Expedient Owings Mills | Data center | — | — | 48 km |
| Bedington Energy Facility, LLC | Power plant | 100 MW | Planned | 49 km |
Owner, operator and place
More from Brickworks Limited
Other mines in Maryland
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.