Mandan — Rockhounding in Morton County, North Dakota

Mandan is a mapped rockhounding spot in Morton County, North Dakota. Reported finds include agate, chalcedony, chert, teredo petrified wood. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Morton County
State: North Dakota
Nearest road: Sunny Place South
Postcode: 58554
Coordinates: 46.81736, -100.93526

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 Mandan

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 Mandan.

Across the state line from Mandan

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

Little EagleCorson County, South Dakota · 79 mi awayPetrified Wood, Opal

Mandan FAQ

Where is Mandan?+

Mandan is in Morton County, North Dakota, at 46.81736, -100.93526. Nearest road: Sunny Place South.

What rocks and minerals can you find at Mandan?+

Mandan is reported to produce Agate, Chalcedony, Chert, Teredo Petrified Wood.

Is collecting allowed at Mandan?+

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 Mandan?+

Open the directions link to navigate to 46.81736, -100.93526 in Google Maps. The nearest road is Sunny Place South.

More rockhounding in North Dakota

See all 20 North Dakota spots →

Open Mandan on the map

Use the RockHoundR app for live land overlays, weather, geology, directions, and saved finds.