Mines in Keweenaw, Houghton, Ontonagon County, Michigan
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Keweenaw, Houghton, Ontonagon County, Michigan has 1 mine and mineral deposit locations documented in federal records from the USGS and MSHA. The most commonly recorded commodity is copper, with 1 sites. The table below lists all recorded mines in the county with links to individual site details.
All Mines in Keweenaw, Houghton, Ontonagon County
| Mine | Commodity | Type | Status | Source |
|---|---|---|---|---|
| Fissure Mines | Copper | Past Producer | MRDS |