Howard Shaft
Past ProducerUndergroundUSGS MRDS
Location
| State | Kentucky |
| County | Crittenden |
| Coordinates | 37.29067, -88.21833 |
Commodities
| Tertiary | Fluorine-Fluorite |
Mine Details
| Status | Past Producer |
| Type | Underground |
| First Production | 1941 |
| Discovery Year | 1903 |
| Data Source | USGS MRDS |
| Source ID | 10121848 |