Grundy County — Rockhounding in Grundy County, Missouri

Grundy County is a mapped rockhounding spot in Grundy County, Missouri. Reported finds include lake superior agate, jasper, fossils, petrified wood. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Grundy County
State: Missouri
Coordinates: 40.11964, -93.52957

Land & collecting status

Generally open to casual rockhounding

Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.

Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.

Sources & verification

Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.

Sources: RockHoundR public spot dataset, app land overlays, and local agency review before each trip.

Found at Grundy County

Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

Nearby rockhounding spots

Other rockhounding spots within driving distance of Grundy County.

Across the state line from Grundy County

Grundy County is close enough to the Missouri border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Grundy County FAQ

Where is Grundy County?+

Grundy County is in Grundy County, Missouri, at 40.11964, -93.52957.

What rocks and minerals can you find at Grundy County?+

Grundy County is reported to produce Lake Superior Agate, Jasper, Fossils, Petrified Wood.

Is collecting allowed at Grundy County?+

Generally open to casual rockhounding. Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig. Always confirm current rules with the managing agency before a trip.

How do I get to Grundy County?+

Open the directions link to navigate to 40.11964, -93.52957 in Google Maps. Some spots are remote — check road conditions before driving out.

More rockhounding in Missouri

See all 94 Missouri spots →

Open Grundy County on the map

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