Mine · Presque Isle County, Michigan, United States
O-N Minerals - Calcite Operation
O-N Minerals - Calcite Operation is a mine in Presque Isle County, Michigan, 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 | Presque Isle 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 | crushed limestone (mainly crushed limestone) | 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 (Michigan) Company | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Employees | 152 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 | 45.4156, -83.8025 | 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: 1 power plant, measured from the coordinates in the facts above.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Little Trout Solar | Power plant | 150 MW | Under construction | 9.9 km |
Owner, operator and place
More from Carmeuse Holding SA
Other mines in Michigan
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.