Where to Find Montana Agate in the United States
7 mapped montana agate spots across 1 U.S. states. Montana Agate is reported at multiple rockhounding spots across the United States. The map below shows where collectors most often find it on legal public ground.
Map showing where to find montana agate across the United States, with 7 mapped spots
Top states for montana agate
States ranked by number of montana agate spots in our database. States in bold link to a focused montana agate-in-state list.
Every montana agate spot we track
Sorted by state and county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| Custer County | Custer County |
| 46.3963, -105.8981 | Public |
| Cracker Box CreekRoad 253 | Dawson County |
| 46.9131, -104.9209 | Public |
| Sand Creek | Dawson County |
| 46.9279, -104.8178 | Public |
| Yellowstone RiverMyers Lane | Park County |
| 45.6285, -110.5678 | Public |
| FallonRiver Road | Prairie County |
| 46.8530, -105.0782 | Public |
| Hatchet Creek | Prairie County |
| 46.8704, -105.0726 | Public |
| Yellowstone River (Billings area)Highway 312 | Yellowstone County |
| 45.9054, -108.3174 | Public |
Montana Agate rockhounding FAQ
Where is the best place to find montana agate in the U.S.?+
Montana have the highest concentrations of montana agate in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many montana agate rockhounding spots does RockHoundR track?+
7 mapped spots across 1 states. The app keeps these on a map alongside your private finds.
Can I legally collect montana agate on public land?+
Casual hand collecting of common rocks and minerals like montana agate is allowed on most BLM and U.S. Forest Service land, with daily and annual limits set by the local field office. National parks, most state parks, and tribal land are off-limits. Always check with the managing agency before a trip.
How do I identify montana agate in the field?+
Field identification of montana agate comes down to color, hardness, fracture, and luster. The RockHoundR app links to geology details for each spot to help narrow down what you might be picking up.
Hunt montana agate on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
