South Pass: Banded Iron Formation Rockhounding in Fremont County, Wyoming

Updated August 2026

South Pass is a mapped rockhounding spot in Fremont County, Wyoming. Reported finds include banded iron formation. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Fremont County
State: Wyoming
Nearest road: Highway 28
Coordinates: 42.36996, -108.91345

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: April 1, 2026

BLM Wyoming
Wyoming State Geological Survey
Fossil Butte National Monument
Community submissions reviewed against published agency rules

Found at South Pass

Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

Banded Iron Formation Encyclopedia →

Nearby rockhounding spots

Other rockhounding spots within driving distance of South Pass.

South Pass FAQ

Where is South Pass?+

South Pass is in Fremont County, Wyoming, at 42.36996, -108.91345. Nearest road: Highway 28.

What rocks and minerals can you find at South Pass?+

South Pass is reported to produce Banded Iron Formation.

Is collecting allowed at South Pass?+

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. Always confirm current rules with the managing agency before a trip.

What tools should I bring to South Pass?+

A rock hammer, sturdy gloves, safety glasses, and a collecting bag cover the basics here. Add a spray bottle: wet rock shows color and pattern that dry rock hides.

How do I get to South Pass?+

Open the directions link to navigate to 42.36996, -108.91345 in Google Maps. The nearest road is Highway 28.

More rockhounding in Wyoming

See all 92 Wyoming spots →

Open South Pass on the map

Use the RockHoundR app for live land overlays, weather, geology, directions, and saved finds.