Keystone Mine
ProducerIron, CopperUSGS MRDS
Location
| State | Puerto Rico |
| Coordinates | 18.23399, -65.89778 |
Commodities
| Primary | Iron, Copper |
Mine Details
| Status | Producer |
| First Production | 1951 |
| Last Production | 1953 |
| Data Source | USGS MRDS |
| Source ID | 10107483 |
| State | Puerto Rico |
| Coordinates | 18.23399, -65.89778 |
| Primary | Iron, Copper |
| Status | Producer |
| First Production | 1951 |
| Last Production | 1953 |
| Data Source | USGS MRDS |
| Source ID | 10107483 |