South Pass City: Gold Prospecting in Fremont County, Wyoming
Updated June 2026
South Pass City is a mapped rockhounding spot in Fremont County, Wyoming. Reported finds include gold. Below: coordinates, access notes, nearby spots, and trip-planning links.
Map showing South Pass City in Fremont County, Wyoming
Quick details
- Access
- Public area
- County
- Fremont County
- State
- Wyoming
- Nearest road
- Atlantic City Road
- Coordinates
- 42.47049, -108.76920
Geology at South Pass City
This spot sits on Metasedimentary rocks, mapped as metasedimentary that formed roughly 4030 to 2500 million years ago. Gold in metamorphic belts like this is typically tied to quartz veins and shear zones, with placer color in the creeks that cut them.
- Mapped unit
- Metasedimentary rocks
- Age
- 4030–2500 Ma (Archean)
- Rock types
- metasedimentary
- Elevation
- 8,160 ft
Geologic mapping via Macrostrat and the underlying state geological survey maps (CC BY 4.0). Bedrock at the surface can vary within a mapped unit.
Best time to visit South Pass City
Best months: April to October. Typical highs run 76°F in midsummer and 27°F in midwinter, with winter lows near 1°F. At about 8,160 ft, snow can block access from late fall well into spring, so check conditions outside of summer.
Climate normals: NOAA 1991-2020 monthlies, SOUTH PASS CITY station (2 mi away), adjusted for elevation.
Land & collecting status
Generally open to casual rockhounding
Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.
Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.
Sources & verification
Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.
State guidance last verified:
- BLM Wyoming
- Wyoming State Geological Survey
- Fossil Butte National Monument
- Community submissions reviewed against published agency rules
Found at South Pass City
Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.
Nearby rockhounding spots
Other rockhounding spots within driving distance of South Pass City.
- Atlantic CityTop pick in WyomingFremont County, Wyoming · 2 mi awayAgate, Chalcedony, Gold
- Fremont CountyFremont County, Wyoming · 10 mi awayAgate, Chalcedony, Jasper
- South PassFremont County, Wyoming · 10 mi awayBanded Iron Formation
- Sweetwater RiverTop pick in WyomingFremont County, Wyoming · 12 mi awayAgate
- LanderFremont County, Wyoming · 24 mi awayAgate, Jasper, Nephrite
- Warm SpringsTop pick in WyomingFremont County, Wyoming · 30 mi awayAgate, Chalcedony, Jasper
- SweetwaterFremont County, Wyoming · 33 mi awaySweetwater Agate
- Steamboat MountainSweetwater County, Wyoming · 37 mi awayAgate, Chalcedony, Jasper
