American Yogo Sapphire Mine
ProducerSapphireUndergroundUSGS MRDS
Location
| State | Montana |
| County | Judith Basin |
| Coordinates | 46.87101, -110.34473 |
Commodities
| Primary | Sapphire |
Mine Details
| Status | Producer |
| Type | Underground |
| Discovery Year | 1896 |
| Data Source | USGS MRDS |
| Source ID | 10294931 |