Where to Find Opal in Utah

Utah has 9 mapped collecting spots that report opal, spread across 6 counties. The largest share sits in Beaver County County with 2 spots. 9 of the spots are on land mapped as publicly accessible.

Spot list checked against source data on April 1, 2026.

Standout opal spots in Utah

Hand-picked from the full list below, with the reason each one earns a trip.

Frisco
Beaver County County
Frisco combines a major historic silver-lead camp with a long mineral list that includes copper carbonates, galena, sphalerite, pyrite, opal, and wulfenite. Mindat documents the San Francisco district's specimen minerals, while USGS mapping and Utah history sources place the locality in one of Beaver County's most important mining landscapes.
Marysville
Piute County County
Marysvale earns a top spot for small but well-formed crystals in rhyolite cavities, especially bixbyite, amethyst, and reported rutile or pseudobrookite. UGS describes the occurrence as BLM public land in a mid-Tertiary volcanic field, and Mindat records the same locality north of Marysvale with bixbyite, amethyst, pseudobrookite, and rutile.
Gold Hill
Tooele County County
Gold Hill is one of Utah's most mineralogically varied old districts, with arsenic, gold, copper, lead, silver, tungsten, and zinc production tied to skarn, vein, and replacement deposits. UGS identifies it as Utah's leading historical producer of tungsten and arsenic, and Mindat records a broad suite of collectible secondary copper, lead, and zinc minerals around the district.

Best counties for opal in Utah

Ranked by the number of mapped opal spots. County links open the full rockhounding page for that county.

Every opal spot we track in Utah

Sorted by county. Coordinates open in Google Maps.

Spot	County	Minerals	Coordinates	Access
FriscoEly Highway	Beaver County	Azurite Barite Calamine Chalcocite Chalcopyrite Chrysocolla Galena Gypsum +7 more	38.4497, -113.2764	Public
Lincoln GulchSR 21	Beaver County	Amethyst Azurite Calcite Cerussite Chalcopyrite Epidote Fluorite Galena +7 more	38.2630, -112.8882	Public
AgateCR 179	Grand County	Agate Chalcedony Chert Jasper Opal Opalized Wood Quartz	39.0176, -109.2472	Public
Colorado RiverDinosaur Diamond Prehistoric Highway	Grand County	Agate Chalcedony Chert Jasper Opal Opalized Wood Quartz	38.6027, -109.5841	Public
Thomas Range	Juab County	Agate Beryl Chalcedony Fluorite Garnet Opal Quartz Topaz	39.7211, -113.1351	Public
MarysvilleWest Bullion Avenue	Piute County	Cinnabar Alunite Albite Biotite Calcite Chlorite Pyrolusite Barite +6 more	38.4494, -112.2304	Public
Fish LakeFishlake Scenic Byway	Sevier County	Opal	38.5620, -111.7094	Public
Clifton mining district	Tooele County	Agate Azurite Dolomite Malachite Garnet Rutile Bornite Calcite +6 more	40.1710, -113.8127	Public
Gold HillEast First Avenue	Tooele County	Azurite Cerussite Chalcopyrite Chlorite Chrysocolla Galena Gold Gypsum +6 more	40.1813, -113.8102	Public

Before you go

Read the opal identification guide so you know what a keeper looks like in the field: Opal in the encyclopedia.

Opal in Utah FAQ

Where can you find opal in Utah?+

The mapped spots concentrate in Beaver County County, Grand County County, and Tooele County County. Every spot on this page appears on the map above with coordinates and access notes.

How many opal spots are mapped in Utah?+

9 spots across 6 counties. The RockHoundR app keeps the same spots on an offline map with public land overlays, geology layers, and your saved finds.

Is it legal to collect opal in Utah?+

Hand collecting of common rocks and minerals in small amounts for personal use is generally allowed on BLM and U.S. Forest Service land, with limits set by the local field office. National parks, most state parks, and tribal land are closed to collecting. 9 of the 9 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.

Where else to find opal

Idaho6 spots

More minerals to hunt in Utah

Hunt opal in Utah with the map in your pocket

RockHoundR puts these spots on an offline map with BLM and Forest Service overlays, geology layers, and a log for your finds.