Perlite Mines in Colorado
44Total Sites
11Active
Perlite Mining in Colorado
Colorado has 44 perlite-related mine and mineral deposit locations recorded in federal databases. Of these, 11 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 |
|---|---|
| Custer County | 16 |
| Saguache County | 14 |
| Conejos County | 5 |
| Fremont County | 3 |
| Gunnison County | 3 |
| Rio Grande County | 2 |
| Grand County | 1 |
Perlite Mines
| Mine | County | Type | Status |
|---|---|---|---|
| El Grande | Conejos | Surface | Active |
| Antonito Mill | Conejos | Processing Plant | Producer |
| Florence Perlite Mill | Fremont | Processing Plant | Producer |
| Johns-Manville | Conejos | Processing Plant | Producer |
| Persolite | Fremont | Processing Plant | Producer |
| Prosser Rock Deposit | Saguache | Producer | |
| Quarry | Custer | Surface | Producer |
| Rosita Hills Deposit | Custer | Producer | |
| Silbrico | Conejos | Processing Plant | Producer |
| Unknown | Custer | Producer | |
| Unknown | Grand | Underground | Producer |
| Abbit | Custer | Surface | Past Producer |
| Antonito Plant | Conejos | Surface | Abandoned |
| Cochetopa Dome Deposit | Saguache | Occurrence | |
| Morning Star | Gunnison | Occurrence | |
| Morning Star | Gunnison | Underground | Past Producer |
| Mountain View Mine | Custer | Surface | Past Producer |
| Persolite Products Inc | Fremont | Facility | Abandoned |
| Prosser Rock Deposit | Saguache | Occurrence | |
| Quarry | Custer | Surface | Past Producer |
| Quarry | Custer | Surface | Past Producer |
| Rosita Mine | Custer | Underground | Past Producer |
| Songbird Mine | Custer | Surface-Underground | Past Producer |
| St. Christopher Perlite | Rio Grande | Underground | Unknown |
| St. Christopher Perlite No. 1,2,3 | Rio Grande | Occurrence | |
| Strip Mine | Custer | Surface | Past Producer |
| Unknown | Saguache | Occurrence | |
| Unknown | Saguache | Occurrence | |
| Unknown | Gunnison | Occurrence | |
| Unknown | Custer | Occurrence | |
| Unknown | Saguache | Underground | Past Producer |
| Unknown | Custer | Underground | Past Producer |
| Unknown | Saguache | Underground | Past Producer |
| Unknown | Custer | Underground | Past Producer |
| Unknown | Saguache | Underground | Past Producer |
| Unknown | Saguache | Underground | Past Producer |
| Unknown | Custer | Underground | Past Producer |
| Unknown | Saguache | Underground | Past Producer |
| Unknown | Saguache | Occurrence | |
| Unknown | Saguache | Underground | Past Producer |
| Unknown | Custer | Underground | Past Producer |
| Unknown | Custer | Underground | Past Producer |
| Unknown | Saguache | Underground | Past Producer |
| Unknown | Saguache | Underground | Past Producer |