Found alongside
Gold
Mohs 2.5–3. Soft, heavy and bright yellow; it doesn’t tarnish. Mindat
72 sites
Copper
Mohs 2.5–3. Native copper is soft and turns green as it weathers. Mindat
14 sites
Silver
Mohs 2.5–3. Native silver tarnishes black. Mindat
12 sites
Quartz
Mohs 7. Six-sided points; smoky quartz is NH’s state gem. Mindat
9 sites
Pyrite
Mohs 6–6.5. Brassy “fool’s gold,” often cubic. Mindat
9 sites
Tourmaline
Mohs 7–7.5. Long striated crystals, often black (schorl) or green and pink (elbaite). Mindat
3 sites
Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.
By county
Marquette County (62) · Ontonagon County (4) · Baraga County (4) · Gogebic County (2)
Sites (first 60)
| Site | Commodity | Minerals recorded | Status | Approx. location |
|---|---|---|---|---|
| Ropes Mine | Gold, Silver | Gold | Producer | 46.536, -87.733 |
| Silver Creek West | Gold | Gold | Prospect | 46.629, -87.772 |
| Gold Bluff Prospect | Gold | Gold | Prospect | 46.610, -87.681 |
| Alger Gold Prospect | Gold | Gold | Prospect | 46.560, -87.671 |
| Morgan Gold Prospect | Gold | Gold | Prospect | 46.521, -87.509 |
| Boulson Exploration | Gold | Gold | Prospect | 46.540, -87.654 |
| Lake Superior Gold Exploration | Gold | Gold | Prospect | 46.519, -87.781 |
| Michigan Gold Mine | Gold | Gold | Producer | 46.517, -87.768 |
| Breitung Gold Exploration | Gold | Gold | Prospect | 46.520, -87.761 |
| Mockler Gold Exploration | Gold | Gold | Prospect | 46.509, -87.782 |
| Grand Rapids & Ishpeming Gold Prospect | Gold | Gold | Prospect | 46.541, -87.781 |
| Brown Gold Prospect | Gold | Gold | Prospect | 46.519, -87.749 |
| Grummett Gold Prospect | Gold | Gold | Prospect | 46.520, -87.756 |
| Grayling Gold Prospect | Gold | Gold | Prospect | 46.523, -87.767 |
| Crescent Gold Exploration | Gold | Gold | Occurrence | 46.603, -87.657 |
| Daniel Sec 5 Gold Prospect | Gold | Gold | Prospect | 46.677, -87.592 |
| Peninsula Gold Prospect | Gold | Gold | Prospect | 46.522, -87.760 |
| Marquette Exploration | Gold | Gold | Prospect | 46.748, -88.046 |
| Foley & Adams Gold Prospect | Gold | Gold | Prospect | 46.533, -87.639 |
| Phillips Gold Exploration | Gold | Gold | Prospect | 46.532, -87.723 |
| Bjork & Ludin Gold Prospect | Gold | Gold | Prospect | 46.527, -87.739 |
| Superior Gold & Silver Exploration | Gold, Silver | Gold | Prospect | 46.520, -87.696 |
| Grummett (Ned Lake) Exploration | Gold | Gold | Prospect | 46.454, -88.336 |
| Krieg Mine | Gold | Gold | Past Producer | 46.484, -87.611 |
| Hancock Exploration | Gold | Gold | Prospect | 46.476, -88.192 |
| Fire Center Prospect | Gold | Gold | Prospect | 46.597, -87.653 |
| Berringer & Thurber Gold Exploration | Gold | Gold | Prospect | 46.490, -87.599 |
| B & M Gold Exploration | Gold | Gold | Prospect | 46.544, -87.695 |
| Calumet Gold Exploration | Gold | Gold | Prospect | 46.540, -87.696 |
| Madden & Hogan Exploration | Gold | Gold | Prospect | 46.520, -87.696 |
| Lake Superior / Detroit Exploration | Gold | Gold | Prospect | 46.659, -87.790 |
| Dead River Gold Mine | Gold | Gold | Prospect | 46.620, -87.750 |
| Detroit Gold & Silver Prospect | Gold | Gold | Prospect | 46.619, -87.719 |
| High Point Gold Prospect | Gold | Gold | Prospect | 46.632, -87.776 |
| Gordon Gold Exploration | Gold | Gold, Chalcopyrite | Occurrence | 46.608, -87.637 |
| Daniel Sec 30 Gold Prospect | Silver, Gold, Copper | Gold, Copper, Silver | Occurrence | 46.702, -87.596 |
| Coon Gold Exploration | Gold, Copper | Gold, Galena, Pyrite, Sphalerite | Occurrence | 46.606, -87.648 |
| Beaser Silver Prospect | Gold | Silver | Occurrence | 46.819, -89.569 |
| Holyoke Silver Mine | Silver | Silver, Gold | Prospect | 46.588, -87.638 |
| (Facility) White Pine Copper Refinery | Copper | — | Plant | 46.750, -89.583 |
| Unnamed Gold Prospect | Gold | — | Occurrence | 46.521, -87.686 |
| Unnamed Lead Deposit | Gold | — | Occurrence | 46.533, -87.507 |
| Gold&Copper&Tungsten&Zinc Prospect | Copper, Gold, Tungsten, Zinc | — | Occurrence | 46.521, -87.750 |
| Unnamed Copper Prospect | Gold | — | Occurrence | 46.554, -87.513 |
| Unnamed Gold and Copper Prospect | Copper, Gold | — | Occurrence | 46.533, -87.613 |
| White Pine | Copper | — | Producer | 46.763, -89.463 |
| Unnamed Gold Prospect | Gold | — | Occurrence | 46.547, -87.692 |
| Unnamed Gold Prospect | Gold | — | Occurrence | 46.553, -87.722 |
| Unnamed Gold Prospect | Gold | — | Occurrence | 46.519, -87.811 |
| Unnamed Gold Prospect | Gold | — | Occurrence | 46.524, -87.763 |
| (Facility) White Pine Copper Smelter | Copper | — | Plant | 46.763, -89.463 |
| Unnamed Gold Prospect | Gold | — | Prospect | 46.747, -88.054 |
| Unnamed Copper Deposit | Gold | — | Occurrence | 46.554, -87.517 |
| Ropes | Gold | — | Plant | 46.536, -87.717 |
| Unnamed Mineral Prospect | Molybdenum, Gold, Copper, Bismuth, Tungsten | — | Occurrence | 46.513, -87.978 |
| Unnamed Gold Prospect | Gold | — | Occurrence | 46.529, -87.738 |
| Michigan Gold Mine | Gold | — | Past Producer | 46.534, -87.768 |
| Unnamed Gold and Silver Prospect | Gold, Silver | — | Occurrence | 46.558, -86.654 |
| Unnamed Gold Prospect | Gold | — | Occurrence | 46.639, -87.753 |
| Unnamed Gold Prospect | Gold | — | Occurrence | 46.542, -87.800 |
Back to Rockhounding in Michigan.
How we built this page: we counted named sites in the USGS Mineral Resources Data System (MRDS) for this area, left out sand, gravel, crushed stone, clay pits and unnamed sites, grouped them by Census county, and linked every site to its USGS record. We did not visit these sites, and MRDS does not tell you who owns the land or whether collecting is allowed.
Source: USGS Mineral Resources Data System (MRDS). USGS ceased systematic updates to MRDS around 2011, so status and details may be out of date. Each site links to its USGS record.
Updated