Sevier Lake: Chalcedony & Galena Rockhounding in Millard County, Utah

Updated June 2026

Sevier Lake is a mapped rockhounding spot in Millard County, Utah. Reported finds include chalcedony, galena, garnet, molybdenite. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Millard County
State: Utah
Coordinates: 39.01656, -113.28907

Geology at Sevier Lake

This spot sits on ground mapped as Lacustrine and alluvial deposits, undifferentiated that formed within roughly the last 129,000 years. Gravels like these concentrate whatever survives the river: agate, jasper, and other tough silica typically show up as rounded, waxy stones.

Mapped unit: Lacustrine and alluvial deposits, undifferentiated
Age: < 1 Ma (Late Pleistocene to Holocene)
Elevation: 5,010 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 Sevier Lake

Best months: February to June. Typical highs run 94°F in midsummer and 42°F in midwinter, with winter lows near 16°F.

Climate normals: NOAA 1991-2020 monthlies, BLACK ROCK station (28 mi away).

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 Utah — Rockhounding overview
Utah Geological Survey — collecting guidelines
SITLA — surface use rules
Community submissions reviewed against published agency rules

Found at Sevier Lake

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 Sevier Lake.

Across the state line from Sevier Lake

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

Snake RangeWhite Pine County, Nevada · 44 mi awaySilver, Tungsten

Sevier Lake FAQ

Where is Sevier Lake?+

Sevier Lake is in Millard County, Utah, at 39.01656, -113.28907.

What rocks and minerals can you find at Sevier Lake?+

Sevier Lake is reported to produce Chalcedony, Galena, Garnet, Molybdenite.

Is collecting allowed at Sevier Lake?+

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 Sevier Lake?+

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 Sevier Lake?+

The most comfortable months at Sevier Lake are February to June.

How do I get to Sevier Lake?+

Open the directions link to navigate to 39.01656, -113.28907 in Google Maps. Some spots are remote, so check road conditions before driving out.

More rockhounding in Utah

See all 246 Utah spots →

Open Sevier Lake on the map

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