RockWoofSketch map
Woof’s favorite find
Agenda Deposit
We picked it because its USGS record mentions 2 gem or collectible minerals (Quartz, Garnet) and 3 of our card minerals overall. No other named site here scores as high on both counts. USGS lists it as prospect for Iron. Minerals mentioned: Quartz, Garnet, Magnetite. Approx. location 46.107, -90.336. 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?
The mineral was noted here, without development.
Explored or test-dug, with no recorded production.
Status not recorded.
Produced ore or material at some point in the past.
Status terms come from USGS MRDS records.
Mineral cards
Magnetite
Mohs 5.5–6.5. Black and strongly magnetic. Mindat
9 sites
Copper
Mohs 2.5–3. Native copper is soft and turns green as it weathers. Mindat
3 sites
Quartz
Mohs 7. Six-sided points; smoky quartz is NH’s state gem. Mindat
2 sites
Mica
Mohs 2–3. Peels into thin, flexible, shiny sheets. Mindat
2 sites
Garnet
Mohs 6.5–7.5. Usually deep red, round many-faced crystals. Mindat
1 site
Pyrite
Mohs 6–6.5. Brassy “fool’s gold,” often cubic. Mindat
1 site
Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.
Minerals recorded here
Magnetite 5Hematite 3Goethite 1Bornite 1Chalcopyrite 1Cubanite 1Marcasite 1Niccolite 1Pentlandite 1Pyrrhotite 1Commodities
Iron 10Copper 2Nickel 2Sites
| Site | Commodity | Minerals recorded | Status | Approx. location |
|---|---|---|---|---|
| Mineral Lake Cu-Ni Prospect | Nickel, Copper | Bornite, Chalcopyrite, Cubanite, Marcasite, Niccolite, Pentlandite, Pyrrhotite | Occurrence | 46.299, -90.808 |
| Berkshire Mine | Iron | Goethite, Hematite, Magnetite | Past Producer | 46.301, -90.624 |
| Michigan Mine | Iron | Hematite, Magnetite | Unknown | 46.100, -90.333 |
| West Gogebic Taconite Deposit | Iron | Hematite, Magnetite | Past Producer | 46.297, -90.653 |
| Butternut Exploration | Iron | Magnetite | Unknown | 46.017, -90.517 |
| Ford Lucas | Iron | Magnetite | Unknown | 46.050, -90.400 |
| South Butternut Deposit | Iron | — | Occurrence | 46.009, -90.510 |
| Agenda Deposit | Iron | — | Occurrence | 46.107, -90.336 |
| Mellen Prospect | Copper, Nickel | — | Occurrence | 46.334, -90.773 |
| South Butternut Deposit | Iron | — | Prospect | 46.009, -90.510 |
| Penokee Deposit | Iron | — | Prospect | 46.297, -90.653 |
| Berkshire Mine | — | — | Past Producer | 46.301, -90.624 |
| Agenda Deposit | Iron | — | Prospect | 46.107, -90.336 |
| Mellen Prospect | — | — | Prospect | 46.334, -90.773 |
Nearby counties
Iron County · Bayfield County · Sawyer County · Washburn County · Price 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