Rockhounding in Yellowstone County, Montana
1 mapped rockhounding spot in Yellowstone County. Most commonly produces chalcedony, chert, jasper, montana agate.
Map showing 1 rockhounding spot in Yellowstone County, Montana
Minerals reported in Yellowstone County
- Chalcedony1
- Chert1
- Jasper1
- Montana Agate1
Spots in Yellowstone County
| Spot | Minerals | Coordinates | Access |
|---|---|---|---|
| Yellowstone River (Billings area)Highway 312 |
| 45.9054, -108.3174 | Public |
Other rockhounding counties in Montana
- Madison County11 spotsTop: Garnet, Gold, Jasper
- Jefferson County7 spotsTop: Gold, Arsenopyrite, Cerussite
- Park County6 spotsTop: Agate, Gold, Jasper
- Beaverhead County5 spotsTop: Amethyst, Aquamarine, Corundum
- Gallatin County5 spotsTop: Agate, Chalcedony, Corundum
- Granite County5 spotsTop: Chrysocolla, Ore, Pyromorphite
Yellowstone County FAQ
Where can I rockhound in Yellowstone County, Montana?+
RockHoundR tracks 1 rockhounding spot in Yellowstone County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.
What rocks and minerals are common in Yellowstone County?+
Spots in Yellowstone County most often produce Chalcedony, Chert, Jasper, Montana Agate. Individual spots can vary widely.
Are these Yellowstone 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 Yellowstone County rockhounding trip
Open RockHoundR to see these spots on the map alongside land overlays, weather, geology, and your saved finds.
