Where to Find Arsenopyrite in Montana
3 mapped arsenopyrite rockhounding spots in Montana, across 2 counties. Arsenopyrite is reported at multiple rockhounding spots across the United States. Montana is famous for its sapphires, Yogo and otherwise, and for the Montana moss agate gravels along the Yellowstone River.
Map of 3 arsenopyrite rockhounding spots in Montana
Arsenopyrite by county in Montana
Counties ranked by number of arsenopyrite spots in our database.
Every arsenopyrite spot in Montana
Sorted by county. Coordinates open in Google Maps. Click a row for details.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| CorbinPowder House Road | Jefferson County | 46.3927, -112.0831 | Public | |
| Wickes & ClancyPowder House Road | Jefferson County | 46.3925, -112.0829 | Public | |
| GardinerSin Nombre Road | Park County | 45.0443, -110.6063 | Public |
Arsenopyrite in Montana FAQ
Where can I find arsenopyrite in Montana?+
RockHoundR tracks 3 arsenopyrite spots in Montana, spread across 2 counties. The strongest concentration is in Jefferson County.
Is collecting arsenopyrite legal in Montana?+
Casual hand collection of common rocks and minerals like arsenopyrite 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 arsenopyrite location in Montana?+
Jefferson County has the most arsenopyrite spots in our database for Montana. The full county breakdown is below — different counties produce different qualities and varieties.
Other states for arsenopyrite
Hunt arsenopyrite in Montana on the map
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