Mine · Pima County, Arizona, United States
Freeport-McMoRan Sierrita Ops.
Freeport-McMoRan Sierrita Ops. is a mine in Pima County, Arizona, United States, owned by Freeport-McMoRan Inc.
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 | Pima 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 | copper (mainly copper) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Owner | Freeport-McMoRan Inc (controls the operator) | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
| Employees | 1,337 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 | 31.8758, -111.1011 | 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
Freeport-McMoRan Inc owns 11 of the 2,675 mines in the United States in our data with a named owner; 24 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% |
| Freeport-McMoRan Inc | 25th | 11 | 0.41% |
Nearby
Within 50 km of this mine: 299 water rights, 2 power plants (1 operating, 529 MW) and 1 data center, measured from the coordinates in the facts above. The table shows the nearest 6, up to 3 per kind.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Duval Leach Wash water right 3R-002315.0002 | Water right | — | — | 2.1 km |
| Tinaja Wash water right 33-096465.0001 | Water right | — | — | 6.0 km |
| Santa Cruz Well water right 36-080852.0000 | Water right | — | — | 11 km |
| Roadrunner Reserve Phase 2 | Power plant | 200 MW | Under construction | 34 km |
| H Wilson Sundt Generating Station | Power plant | 529 MW | Operating | 37 km |
| DirecTV data center, Tucson | Data center | — | — | 38 km |
Owner and place
More from Freeport-McMoRan Inc
Other mines in Arizona
Data on this page
- Arizona Department of Water Resources water rights (surface water filings and irrigation grandfathered rights). Arizona Department of Water Resources water rights (surface water filings and irrigation grandfathered rights), Restricted.
- 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.