Pathfinder Reservoir: Banded Iron Formation Rockhounding in Natrona County, Wyoming

Updated August 2026

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

Quick details

Access: Public area
County: Natrona County
State: Wyoming
Coordinates: 42.44168, -106.95111

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 Pathfinder Reservoir

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 Pathfinder Reservoir.

Pathfinder Reservoir FAQ

Where is Pathfinder Reservoir?+

Pathfinder Reservoir is in Natrona County, Wyoming, at 42.44168, -106.95111.

What rocks and minerals can you find at Pathfinder Reservoir?+

Pathfinder Reservoir is reported to produce Banded Iron Formation.

Is collecting allowed at Pathfinder Reservoir?+

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 Pathfinder Reservoir?+

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 Pathfinder Reservoir?+

Open the directions link to navigate to 42.44168, -106.95111 in Google Maps. Some spots are remote, so check road conditions before driving out.

More rockhounding in Wyoming

See all 92 Wyoming spots →

Open Pathfinder Reservoir on the map

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