Where to Find Marcasite in Wisconsin
Wisconsin has 7 mapped collecting spots that report marcasite, spread across 5 counties. The largest share sits in Grant County County with 3 spots. 7 of the spots are on land mapped as publicly accessible.
Map of 7 marcasite collecting spots in Wisconsin
Best counties for marcasite in Wisconsin
Ranked by the number of mapped marcasite spots. County links open the full rockhounding page for that county.
- Grant County3 spots
- Iowa County1 spot
- Iron County1 spot
- Racine County1 spot
- Waushara County1 spot
Every marcasite spot we track in Wisconsin
Sorted by county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| Hazel GreenState Highway 80 | Grant County | 42.5327, -90.4359 | Public | |
| PlattevilleWest Main Street | Grant County | 42.7346, -90.4803 | Public | |
| WerleyStar Lane | Grant County |
| 43.0204, -90.7662 | Public |
| DodgevilleCounty Highway YZ | Iowa County | 42.9757, -90.0862 | Public | |
| Montreal MineWisconsin Avenue | Iron County |
| 46.4281, -90.2337 | Public |
| RacineRacine MRK Trail | Racine County | 42.7739, -87.8083 | Public | |
| OshkoshDivision Street | Waushara County | 44.0430, -89.0981 | Public |
Before you go
Read the marcasite identification guide so you know what a keeper looks like in the field: Marcasite in the encyclopedia.
Marcasite in Wisconsin FAQ
Where can you find marcasite in Wisconsin?+
The mapped spots concentrate in Grant County County, Iowa County County, and Iron County County. Every spot on this page appears on the map above with coordinates and access notes.
How many marcasite spots are mapped in Wisconsin?+
7 spots across 5 counties. The RockHoundR app keeps the same spots on an offline map with public land overlays, geology layers, and your saved finds.
Is it legal to collect marcasite in Wisconsin?+
Hand collecting of common rocks and minerals in small amounts for personal use is generally allowed on BLM and U.S. Forest Service land, with limits set by the local field office. National parks, most state parks, and tribal land are closed to collecting. 7 of the 7 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.
Where else to find marcasite
More minerals to hunt in Wisconsin
Hunt marcasite in Wisconsin with the map in your pocket
RockHoundR puts these spots on an offline map with BLM and Forest Service overlays, geology layers, and a log for your finds.
