Where to Find Chalcedony in Minnesota
Minnesota has 5 mapped collecting spots that report chalcedony, spread across 4 counties. The largest share sits in Crow Wing County County with 2 spots. 5 of the spots are on land mapped as publicly accessible.
Map of 5 chalcedony collecting spots in Minnesota
Best counties for chalcedony in Minnesota
Ranked by the number of mapped chalcedony spots. County links open the full rockhounding page for that county.
- Crow Wing County2 spots
- Hennepin County1 spot
- Olmsted County1 spot
- Saint Louis County1 spot
Every chalcedony spot we track in Minnesota
Sorted by county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| Arco MineSlikstone Drive | Crow Wing County |
| 46.4891, -94.0019 | Public |
| Portsmouth MinePortsmouth Campground Trail | Crow Wing County |
| 46.4908, -93.9714 | Public |
| OsseoElm Creek Boulevard | Hennepin County | 45.0931, -93.4087 | Public | |
| RochesterZumbro River Trail South | Olmsted County | 43.9970, -92.4930 | Public | |
| ElyDavid Dill-Taconite State Trail | Saint Louis County | 47.8756, -91.9145 | Public |
Before you go
Read the chalcedony identification guide so you know what a keeper looks like in the field: Chalcedony in the encyclopedia.
Chalcedony in Minnesota FAQ
Where can you find chalcedony in Minnesota?+
The mapped spots concentrate in Crow Wing County County, Hennepin County County, and Olmsted County County. Every spot on this page appears on the map above with coordinates and access notes.
How many chalcedony spots are mapped in Minnesota?+
5 spots across 4 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 chalcedony in Minnesota?+
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. 5 of the 5 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.
Where else to find chalcedony
More minerals to hunt in Minnesota
Hunt chalcedony in Minnesota 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.
