Humboldt (old) Mine
Past ProducerIronUndergroundUSGS MRDS
Location
| State | Michigan |
| County | Marquette |
| Coordinates | 46.48861, -87.90447 |
Commodities
| Primary | Iron |
Mine Details
| Status | Past Producer |
| Type | Underground |
| Deposit Type | Bedded, Chemical Sediment |
| First Production | 1865 |
| Last Production | 1920 |
| Discovery Year | 1844 |
| Data Source | USGS MRDS |
| Source ID | 10082787 |