Rockhounding in Sweetwater County, Wyoming
14 mapped rockhounding spots in Sweetwater County. Most commonly produces agate, chalcedony, jasper, silicified wood.
Every rockhounding spot in Sweetwater County
Best spotEden ValleySweetwater County, WyomingPublic access · Silicified Wood
Best spotWamsutterSweetwater County, WyomingPublic access · Turritella Agate
Sweetwater CountySweetwater County, WyomingPublic access · Agate, Chalcedony, Chert +5
FarsonSweetwater County, WyomingPublic access · Agate, Chalcedony, Chert +3
Red DesertSweetwater County, WyomingPublic access · Agate, Chalcedony, Chert +3
Rock SpringsSweetwater County, WyomingPublic access · Agate, Chalcedony, Chert +3
Black Rock SpringsSweetwater County, WyomingPublic access · Garnet, Ruby, Peridot +2
Butcher Knife DrawSweetwater County, WyomingPublic access · Garnet, Ruby, Peridot +2
Green RiverSweetwater County, WyomingPublic access · Agate, Chalcedony, Jasper +1
Steamboat MountainSweetwater County, WyomingPermission required · Agate, Chalcedony, Jasper +1
Bitter CreekSweetwater County, WyomingPublic access · Tschermigite
Blue ForestSweetwater County, WyomingPublic access · Petrified Wood
Eden ValleySweetwater County, WyomingFee dig · Petrified Wood
GrangerSweetwater County, WyomingPublic access · Turritella Agate
Sweetwater County rockhounding photos
Representative spot and material photos from this county, shown where verified public image records are available.
Minerals reported in Sweetwater County
Standouts in Sweetwater County
Hand-picked spots in Sweetwater County, chosen for unusual mineralogy or documented public access. Each card opens the full coordinates and access notes.
Top pickEden Valley
Public accessSweetwater County
Eden Valley is the Wyoming benchmark for silicified and agatized wood, with Mindat records tying petrified wood to Eden Valley and the Blue Forest area.
Silicified Wood
Top pickWamsutter
Public accessSweetwater County
Wamsutter is the practical Wyoming stop for dark fossiliferous lapidary material sold as Turritella agate, more accurately tied to silicified Green River Formation gastropods.
Turritella Agate
Neighboring counties in Wyoming
Adjacent rockhounding counties, ranked by how close their centroids sit to Sweetwater County. A natural extension if Sweetwater County is already on your trip plan.

