Bentonite Mines in Oregon
22Total Sites
8Active
Bentonite Mining in Oregon
Oregon has 22 bentonite-related mine and mineral deposit locations recorded in federal databases. Of these, 8 are currently active operations. Data comes from the USGS Mineral Resources Data System and MSHA Mine Safety and Health Administration records.
By County
| County | Sites |
|---|---|
| Malheur County | 13 |
| Crook County | 7 |
| Baker County | 1 |
| Douglas County | 1 |
Bentonite Mines
| Mine | County | Type | Status |
|---|---|---|---|
| A Pit | Malheur | Surface | Producer |
| B Pit | Malheur | Surface | Producer |
| Central Oregon Bentonite | Crook | Surface | Producer |
| Cottontail Millsite | Malheur | Processing Plant | Producer |
| D Pit | Malheur | Surface | Producer |
| Evergreen Bentonite Pit | Crook | Surface | Producer |
| Gb Pit | Malheur | Surface | Producer |
| North Pit | Malheur | Surface | Producer |
| Bentonite Pit | Baker | Past Producer | |
| Buck Gulch | Malheur | Past Producer | |
| Buck Gulch | Malheur | Surface | Prospect |
| Central Oregon Bentonite | Crook | Past Producer | |
| Clover Patch (bentonite Llc) | Crook | Surface | Abandoned |
| Crumpton | Douglas | Surface | Unknown |
| D Pit | Malheur | Past Producer | |
| North Pit | Malheur | Past Producer | |
| Owyhee Reservior Bentonite | Malheur | Occurrence | |
| Owyhee Reservoir Bentonite | Malheur | Surface | Occurrence |
| Prineville Bentonite | Crook | Past Producer | |
| Prineville Bentonite | Crook | Surface | Unknown |
| South Pit | Malheur | Past Producer | |
| Star #1-2-3 | Crook | Surface | Intermittent |