Wind River & Streams: Agate & Chalcedony Rockhounding in Fremont County, Wyoming

Updated July 2026

Wind River & Streams is a mapped rockhounding spot in Fremont County, Wyoming. Reported finds include agate, chalcedony, jasper. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Permission required
County: Fremont County
State: Wyoming
Nearest road: Country Club Drive
Postcode: 82501
Coordinates: 43.01800, -108.45256

Geology at Wind River & Streams

This spot sits on Alluvium and Colluvium, mapped as clay, silt, and sand that formed within roughly the last 3 million years. Gravels like these concentrate whatever survives the river: agate, jasper, and other tough silica typically show up as rounded, waxy stones.

Mapped unit: Alluvium and Colluvium
Age: 3 Ma to present (Pleistocene to Holocene)
Rock types: clay, silt, and sand
Elevation: 4,990 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 Wind River & Streams

Best months: March to November. Typical highs run 90°F in midsummer and 33°F in midwinter, with winter lows near 10°F.

Climate normals: NOAA 1991-2020 monthlies, RIVERTON station (4 mi away), adjusted for elevation.

Land & collecting status

Permission required before collecting

Requires landowner or agency permission before any collecting. Do not enter without explicit authorization.

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 Wind River & Streams

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 Wind River & Streams.

Wind River & Streams FAQ

Where is Wind River & Streams?+

Wind River & Streams is in Fremont County, Wyoming, at 43.01800, -108.45256. Nearest road: Country Club Drive.

What rocks and minerals can you find at Wind River & Streams?+

Wind River & Streams is reported to produce Agate, Chalcedony, Jasper.

Is collecting allowed at Wind River & Streams?+

Permission required before collecting. Requires landowner or agency permission before any collecting. Do not enter without explicit authorization. Always confirm current rules with the managing agency before a trip.

What tools should I bring to Wind River & Streams?+

Most agate and jasper is surface float: bring a spray bottle, a pick or small shovel, and a sturdy bag. Wet stones show their banding and translucence.

When is the best time to visit Wind River & Streams?+

The most comfortable months at Wind River & Streams are March to November.

How do I get to Wind River & Streams?+

Open the directions link to navigate to 43.01800, -108.45256 in Google Maps. The nearest road is Country Club Drive.

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