Butterfield Mine
Past ProducerREE, Niobium (Columbium), TantalumUSGS MRDS
Location
| State | Colorado |
| County | Jefferson |
| Coordinates | 39.41777, -105.31225 |
Commodities
| Primary | REE, Niobium (Columbium), Tantalum |
Mine Details
| Status | Past Producer |
| Data Source | USGS MRDS |
| Source ID | 10013725 |