Rockhounding in Dawson County, Montana

4 mapped rockhounding spots in Dawson County. Most commonly produces jasper, montana agate, agate, chalcedony.

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Every rockhounding spot in Dawson County

Best spotGlendiveDawson County, MontanaPublic access · Agate, Jasper, Moss Opal
Yellowstone River - Black Bridge Boat LaunchDawson County, MontanaPublic access · Montana Moss Agate, Petrified Wood, Jasper +1
Cracker Box CreekDawson County, MontanaPublic access · Montana Agate
Sand CreekDawson County, MontanaPublic access · Montana Agate

Dawson County rockhounding photos

Representative spot and material photos from this county, shown where verified public image records are available.

1 photo

Polished Montana moss agate with dendritic inclusions from a Yellowstone River gravel bar, the signature agate found near Glendive, Dawson County, Montana — GlendiveDawson County, Montana

Minerals reported in Dawson County

Standout in Dawson County

Hand-picked spot in Dawson County, chosen for unusual mineralogy or documented public access. Each card opens the full coordinates and access notes.

Top pick
Glendive
Public access
Dawson County
Glendive sits in eastern Montana's Yellowstone River agate belt, where gravel bars and nearby breaks are known for agate, jasper, and petrified-wood style silica material.
Agate, Jasper, Moss Opal

Neighboring counties in Montana

Adjacent rockhounding counties, ranked by how close their centroids sit to Dawson County. A natural extension if Dawson County is already on your trip plan.

Prairie County~21 mi3 spotsTop: Montana Agate, Chalcedony, Jasper

Across the state line from Dawson County

Rockhounding counties in neighboring states within driving range. Geology rarely respects state borders. These are often the closest mapped spots you can reach without going deeper into Montana.

Dawson County FAQ

Where can I rockhound in Dawson County, Montana?+

RockHoundR tracks 4 rockhounding spots in Dawson County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.

What rocks and minerals are common in Dawson County?+

Spots in Dawson County most often produce Jasper, Montana Agate, Agate, Chalcedony, Montana Moss Agate. Individual spots can vary widely.

Are these Dawson County rockhounding spots on public land?+

Most spots in this list are tagged public, but access can change with seasons, claims, and local closures. Always verify before driving out, links in the app open the right BLM, USFS, or county pages.

Plan a Dawson County rockhounding trip

Open RockHoundR to see these spots on the map alongside land overlays, weather, geology, and your saved finds.