Best spot

Topaz Dome Quarry: Beryl & Calcite Rockhounding in Juab County, Utah

Updated July 2026

Topaz Mountain is Utah's defining gem locality, where amber topaz crystals formed in cavities of the Topaz Mountain Rhyolite and commonly bleach colorless in sunlight. The BLM identifies the area as a public rockhound recreation site, while the Utah Geological Survey documents topaz, red beryl, amethyst, garnet, bixbyite, opal, and hematite in the same volcanic field. Reported finds include beryl, calcite, bixbyite, carnelian, carnotite, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.

Topaz Dome Quarry photos

Public image records connected to this spot or its reported material.

2 photos

Quick details

Access: Permission required
County: Juab County
State: Utah
Coordinates: 39.69659, -113.09870

Geology at Topaz Dome Quarry

This spot sits on Alluvium and colluvium, mapped as unconsolidated alluvium and colluvium 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 (Quaternary)
Rock types: unconsolidated alluvium and colluvium
Elevation: 5,780 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 Topaz Dome Quarry

Best months: March to November. Typical highs run 90°F in midsummer and 33°F in midwinter, with winter lows near 13°F.

Climate normals: NOAA 1991-2020 monthlies, FISH SPRINGS NWR station (19 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 Utah — Rockhounding overview
Utah Geological Survey — collecting guidelines
SITLA — surface use rules
Community submissions reviewed against published agency rules

Found at Topaz Dome Quarry

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 Topaz Dome Quarry.

Across the state line from Topaz Dome Quarry

Topaz Dome Quarry 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.

Topaz Dome Quarry FAQ

Where is Topaz Dome Quarry?+

Topaz Dome Quarry is in Juab County, Utah, at 39.69659, -113.09870.

What rocks and minerals can you find at Topaz Dome Quarry?+

Topaz Dome Quarry is reported to produce Beryl, Calcite, Bixbyite, Carnelian, Carnotite, Chalcedony, Fluorite, Garnet, Hematite, Hyalite, Quartz, Specularite, Topaz.

Is collecting allowed at Topaz Dome Quarry?+

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 Topaz Dome Quarry?+

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 Topaz Dome Quarry?+

The most comfortable months at Topaz Dome Quarry are March to November.

How do I get to Topaz Dome Quarry?+

Open the directions link to navigate to 39.69659, -113.09870 in Google Maps. Some spots are remote, so check road conditions before driving out.

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