Where to Find Jasper in Montana
9 mapped jasper rockhounding spots in Montana, across 6 counties. Jasper is the opaque cousin of agate: silica-cemented, often vividly colored, and tough enough to take a high polish. Montana is famous for its sapphires, Yogo and otherwise, and for the Montana moss agate gravels along the Yellowstone River.
Map of 9 jasper rockhounding spots in Montana
Jasper by county in Montana
Counties ranked by number of jasper spots in our database.
Every jasper spot in Montana
Sorted by county. Coordinates open in Google Maps. Click a row for details.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| Big Horn CanyonRoute 211 | Big Horn County | 45.3130, -107.9604 | Public | |
| Pryor MountainsBad Pass Road | Big Horn County | 45.2386, -108.2675 | Public | |
| GlendiveI 94 | Dawson County | 47.1149, -104.6650 | Public | |
| Finnegan Ridge | Madison County | 45.5038, -111.3832 | Public | |
| Jefferson RiverPrimrose Lane | Madison County | 45.6902, -112.2745 | Public | |
| CarbellaRock Creek Road South | Park County | 45.2175, -110.9273 | Public | |
| MinerTom Miner Creek Road | Park County | 45.1918, -110.9271 | Public | |
| TerryBroadview Bench Road | Prairie County | 46.7727, -105.2599 | Public | |
| Yellowstone River (Billings area)Highway 312 | Yellowstone County |
| 45.9054, -108.3174 | Public |
Jasper in Montana FAQ
Where can I find jasper in Montana?+
RockHoundR tracks 9 jasper spots in Montana, spread across 6 counties. The strongest concentration is in Big Horn County.
Is collecting jasper legal in Montana?+
Casual hand collection of common rocks and minerals like jasper is allowed on most BLM and U.S. Forest Service land in Montana, with daily and annual limits set by the local field office. National parks, most state parks, and tribal land are off-limits. Always confirm rules before a trip.
What is the best jasper location in Montana?+
Big Horn County has the most jasper spots in our database for Montana. The full county breakdown is below — different counties produce different qualities and varieties.
Other states for jasper
Hunt jasper in Montana on the map
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