Best spot

Kemmerer — Rockhounding in Lincoln County, Wyoming

Kemmerer anchors the western Green River Formation belt, where public-land outcrops and gravels can yield chert, chalcedony, jasper, silicified wood, and fossiliferous lapidary stone. It is included separately from the paid fossil-fish quarries because the best free collecting value is common lapidary material on verified public parcels, not commercial quarry access. Reported finds include turritella agate, chalcedony, chert, jasper, quartz, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.

Kemmerer photos

Public image records connected to this spot or its reported material, with source and license attribution.

4 photos

Map showing Kemmerer in Lincoln County, Wyoming

Quick details

Access
Public area
State
Wyoming
Nearest road
Emigrant Trail

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:

Found at Kemmerer

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 Kemmerer.

Across the state line from Kemmerer

Kemmerer is close enough to the Wyoming border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Kemmerer FAQ

Why is Kemmerer one of the best rockhounding spots in Wyoming?+
Kemmerer anchors the western Green River Formation belt, where public-land outcrops and gravels can yield chert, chalcedony, jasper, silicified wood, and fossiliferous lapidary stone. It is included separately from the paid fossil-fish quarries because the best free collecting value is common lapidary material on verified public parcels, not commercial quarry access.
Where is Kemmerer?+
Kemmerer is in Lincoln County, Wyoming, at 41.81137, -110.47798. Nearest road: Emigrant Trail.
What rocks and minerals can you find at Kemmerer?+
Kemmerer is reported to produce Turritella Agate, Chalcedony, Chert, Jasper, Quartz, Petrified Wood, Silicified Wood.
Is collecting allowed at Kemmerer?+
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.
How do I get to Kemmerer?+
Open the directions link to navigate to 41.81137, -110.47798 in Google Maps. The nearest road is Emigrant Trail.

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