Rockhounding in Fremont County, Wyoming
19 mapped rockhounding spots in Fremont County. Most commonly produces agate, jasper, chalcedony, beryl.
Every rockhounding spot in Fremont County
Best spotAtlantic CityFremont County, WyomingPublic access · Agate, Chalcedony, Gold +8- Best spotWarm SpringsFremont County, WyomingPublic access · Agate, Chalcedony, Jasper +4
Best spotSweetwater RiverFremont County, WyomingPermission required · Agate
Copper Mountain PegmatitesFremont County, WyomingCheck locally · Garnet, Beryl, Lepidolite +2- Green MountainFremont County, WyomingCheck locally · Banded Agate, Moss Agate, Aventurine +2
ShoshoniFremont County, WyomingPublic access · Aquamarine, Beryl, Feldspar +1- Fort WashakieFremont County, WyomingPermission required · Moss Agate, Chalcedony, Jasper
- Fremont CountyFremont County, WyomingPublic access · Agate, Chalcedony, Jasper
- Fremont CountyFremont County, WyomingPublic access · Sweetwater Agate, Nephrite Jade, Jade
- Granite Mountains PegmatitesFremont County, WyomingPublic access · Almandine Garnet, Beryl, Black Tourmaline
- LanderFremont County, WyomingPublic access · Agate, Jasper, Nephrite
- Sage Hen CreekFremont County, WyomingPublic access · Agate, Chalcedony, Jasper
- Wind River & StreamsFremont County, WyomingPermission required · Agate, Chalcedony, Jasper
- ThermopolisFremont County, WyomingPermission required · Copper, Limonite
- Copper MountainFremont County, WyomingCheck locally · Uranium
- Owl CreekFremont County, WyomingPublic access · Gold
- South PassFremont County, WyomingPublic access · Banded Iron Formation
- South Pass CityFremont County, WyomingCheck locally · Gold
- SweetwaterFremont County, WyomingPublic access · Sweetwater Agate
Fremont County rockhounding photos
Representative spot and material photos from this county, shown where verified public image records are available.
Minerals reported in Fremont County
Standouts in Fremont County
Hand-picked spots in Fremont County, chosen for unusual mineralogy or documented public access. Each card opens the full coordinates and access notes.
Top pickSweetwater River
PermissionFremont County
Sweetwater agate is Wyoming's signature agate, and the Sweetwater River drainage is the classic field area tied to the Granite Mountains source terrain.
Agate
Top pickAtlantic City
Public accessFremont County
Atlantic City sits in the South Pass country, where Wyoming's gold-mining history overlaps with the central Wyoming jade and agate belt.
Agate, Chalcedony, Gold, Nephrite Jade
Top pickWarm Springs
Public accessFremont County
Warm Springs is a strong Granite Mountains-area pick because it combines Wyoming jade targets with agate, jasper, chalcedony, quartz, and silicified wood in one public-land collecting corridor.
Agate, Chalcedony, Jasper, Jade
Neighboring counties in Wyoming
Adjacent rockhounding counties, ranked by how close their centroids sit to Fremont County. A natural extension if Fremont County is already on your trip plan.
- Natrona County~78 mi7 spotsTop: Agate, Chalcedony, Alabaster
- Sweetwater County~85 mi14 spotsTop: Agate, Chalcedony, Jasper
- Park County~107 mi4 spotsTop: Agate, Anhydrite, Azurite
- Carbon County~119 mi8 spotsTop: Opalized Wood, Autunite, Azurite
- Big Horn County~130 mi6 spotsTop: Fossil, Gastrolith, Gypsum
- Lincoln County~131 mi2 spotsTop: Chalcedony, Chert, Jasper
Fremont County FAQ
Where can I rockhound in Fremont County, Wyoming?+
What rocks and minerals are common in Fremont County?+
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