Mine · Colorado County, Texas, United States
Duncan Plant
Duncan Plant is a mine in Colorado County, Texas, United States, owned by Summit 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 | Colorado 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 | industrial sand (mainly industrial sand) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Owner | Summit Materials LLC (controls the operator) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Operator | Alleyton Resource Co. LLC | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Employees | 19 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 | 29.5219, -96.3411 | 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
Summit Materials LLC owns 4 of the 2,675 mines in the United States in our data with a named owner; 99 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% |
| Summit Materials LLC | 100th | 4 | 0.15% |
Nearby
Within 50 km of this mine: 7 power plants (3 operating, 2,384 MW), measured from the coordinates in the facts above. The table shows the nearest 3.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Rock Island Generation Project | Power plant | 122 MW | Planned | 19 km |
| Raven Storage | Power plant | 100 MW | Under construction | 25 km |
| Sunrose Renewable Energy | Power plant | 600 MW | Planned | 27 km |
Owner, operator and place
More from Summit Materials LLC
- Pope's Pointmine
- Sawyer Quarrymine
- Guntersville Sandmine
Other mines in Texas
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.