Rockhounding in Madison County, Montana
14 mapped rockhounding spots in Madison County. Most commonly produces garnet, gold, jasper, quartz.
Every rockhounding spot in Madison County
Best spotRuby RiverMadison County, MontanaPublic access · Almandine Garnet
Pole CreekMadison County, MontanaPermission required · Garnet, Gold, Quartz +2
Jefferson RiverMadison County, MontanaPublic access · Agate, Chalcedony, Jasper +1
Bismark MineMadison County, MontanaPublic access · Molybdenite, Pyrite, Chalcopyrite
EnnisMadison County, MontanaPublic access · Andalusite, Kyanite, Sillimanite
Finnegan RidgeMadison County, MontanaPermission required · Chert, Jasper
Virginia CityMadison County, MontanaPublic access · Garnet, Gold
Gem MountainMadison County, MontanaFee dig · Sapphire
Gravelly RangeMadison County, MontanaPublic access · Onyx
Indian Creek RoadMadison County, MontanaPublic access · Calcite
Mill CanyonMadison County, MontanaPublic access · Tourmaline
Red Rock Mine & Garnet GalleryMadison County, MontanaFee dig · Garnet
Ruby DamMadison County, MontanaPublic access · Garnet
South Boulder RiverMadison County, MontanaPublic access · Quartz
Madison County rockhounding photos
Representative spot and material photos from this county, shown where verified public image records are available.

Minerals reported in Madison County
Standout in Madison County
Hand-picked spot in Madison County, chosen for unusual mineralogy or documented public access. Each card opens the full coordinates and access notes.
Neighboring counties in Montana
Adjacent rockhounding counties, ranked by how close their centroids sit to Madison County. A natural extension if Madison County is already on your trip plan.
- Gallatin County~39 mi5 spotsTop: Agate, Chalcedony, Corundum
- Jefferson County~49 mi12 spotsTop: Gold, Arsenopyrite, Cerussite
- Beaverhead County~49 mi5 spotsTop: Amethyst, Aquamarine, Corundum
- Silver Bow County~51 mi2 spotsTop: Bornite, Pisanite, Rhodochrosite
- Park County~63 mi6 spotsTop: Agate, Gold, Jasper
- Broadwater County~68 mi3 spotsTop: Gold, Silver, Lead
Madison County FAQ
Where can I rockhound in Madison County, Montana?+
RockHoundR tracks 14 rockhounding spots in Madison County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.
What rocks and minerals are common in Madison County?+
Spots in Madison County most often produce Garnet, Gold, Jasper, Quartz, Sapphire. Individual spots can vary widely.
Are these Madison 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.
