RockWoofSketch map
Woof’s favorite find
Mayville Mine
We picked it because its USGS record mentions 1 of the minerals on our cards and 1 of our card minerals overall. No other named site here scores as high on both counts. USGS lists it as past producer for Iron, Copper, Lead. Minerals mentioned: Copper. Approx. location 43.438, -88.532. USGS record.
Ask first: a USGS record doesn’t mean you can visit. Find out who owns the land and get permission before collecting.
Field cards: what kind of sites?
Produced ore or material at some point in the past.
Was producing when the record was made.
Status terms come from USGS MRDS records.
Mineral cards
Copper
Mohs 2.5–3. Native copper is soft and turns green as it weathers. Mindat
1 site
Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.
Minerals recorded here
No individual minerals are listed in these records.
Commodities
Iron 2Calcium 2Copper 1Lead 1Sites
| Site | Commodity | Minerals recorded | Status | Approx. location |
|---|---|---|---|---|
| Iron Ridge Mine | Iron | — | Past Producer | 43.425, -88.534 |
| Mayville Mine | Iron, Copper, Lead | — | Past Producer | 43.438, -88.532 |
| Mayville Mine | — | — | Past Producer | 43.438, -88.532 |
| Mayville White Lime Quarry | Calcium | — | Producer | 43.448, -88.539 |
| Iron Ridge Mine | — | — | Past Producer | 43.425, -88.534 |
| Western Lime-Knowles Quarry | Calcium | — | Producer | 43.584, -88.507 |
Fossil collections
The Paleobiology Database lists 2 fossil collection records in Dodge County. These are research records, not public dig sites.
Nearby counties
Fond du Lac County · Milwaukee County · Marquette County · Dane County · Manitowoc County
Wisconsin mineral guides
- Quartz in Wisconsin
- Gold in Wisconsin
- Magnetite in Wisconsin
- Pyrite in Wisconsin
- Galena in Wisconsin
- Copper in Wisconsin
Back to all Wisconsin counties.
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 USGS ceased systematic updates to MRDS around 2011, so status and details may be out of date.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