Rockhounding in Custer County, Idaho
9 mapped rockhounding spots in Custer County. Most commonly produces gold, agate, azurite, banded opal.
Every rockhounding spot in Custer County
Best spotMackayCuster County, IdahoPublic access · Azurite, Chalcopyrite, Chrysocolla +3- Best spotChallisCuster County, IdahoPublic access · Red Agate, Banded Opal
StanleyCuster County, IdahoPermission required · Corundum, Gold, Sapphire
Malm GulchCuster County, IdahoPublic access · Agate, Petrified Wood- Salmon River (Stanley area)Custer County, IdahoPublic access · Gold, Cinnabar
- Challis (fluorite area)Custer County, IdahoPublic access · Fluorite
- Empire MineCuster County, IdahoPublic access · Purple Fluorite
- Poison CreekCuster County, IdahoPublic access · Common Opal
- Wildhorse CanyonCuster County, IdahoPublic access · Quartz
Custer County rockhounding photos
Representative spot and material photos from this county, shown where verified public image records are available.
Minerals reported in Custer County
Standouts in Custer County
Hand-picked spots in Custer County, chosen for unusual mineralogy or documented public access. Each card opens the full coordinates and access notes.
Top pickChallis
Public accessCuster County
Challis represents the Challis Volcanics better than a single protected petrified-forest stop, with Idaho Department of Lands listing nearby red agate, banded opal, and petrified-wood localities in Custer County.
Red Agate, Banded Opal
Top pickMackay
Public accessCuster County
Mackay is the best Custer County mine-district pick for copper minerals, with Mindat documenting malachite and related species across the Alder Creek and White Knob district.
Azurite, Chalcopyrite, Chrysocolla, Malachite
Neighboring counties in Idaho
Adjacent rockhounding counties, ranked by how close their centroids sit to Custer County. A natural extension if Custer County is already on your trip plan.
- Blaine County~39 mi7 spotsTop: Galena, Jasper, Sphalerite
- Butte County~48 mi3 spotsTop: Amethyst, Geode, Agate
- Lemhi County~57 mi6 spotsTop: Gold, Agate, Banded Agate
- Elmore County~67 mi2 spotsTop: Gold, Smoky Quartz, Topaz
- Valley County~82 mi5 spotsTop: Agate, Arsenopyrite, Blue Topaz
- Boise County~85 mi4 spotsTop: Aquamarine, Feldspar, Garnet
Custer County FAQ
Where can I rockhound in Custer County, Idaho?+
What rocks and minerals are common in Custer County?+
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Plan a Custer County rockhounding trip
Open RockHoundR to see these spots on the map alongside land overlays, weather, geology, and your saved finds.
