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Spor Mountain: Fluorite & Bertrandite Rockhounding in Juab County, Utah

Check locallyBest spot9 mineralsJuab County, UtahUpdated October 2026
2 photos
Minerals reported
9
Elevation
5,670 ft
Best months
March to June

Spor Mountain stands out because its topaz-rhyolite-related deposits made it the world's premier beryllium district and Utah's largest fluorite producer. Mindat documents bertrandite, fluorite, chalcedony, opal, carnotite, hematite, magnetite, pyrite, quartz, and topaz across the district, which makes it more than a single-specimen stop. Reported finds include fluorite, bertrandite, carnotite, chalcedony, chalcopyrite, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.

Plan your visit

Confirm rules before collecting

State
Utah
Nearest road
Eagle Rock
Get directionsView on Google Maps

Coordinates are approximate. Confirm the exact ground in the RockHoundR app, where land overlays show which agency manages the area.

Land & collecting status

Confirm rules before collecting

Land status here is not confirmed. Verify with the managing agency before collecting, federal, state, and tribal rules differ.

Access note: Public land occurs near the district, but active mines, claims, and industrial operations are present. Avoid mine property and collect only on open public ground where allowed.

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.

Best time to visit Spor Mountain

Comfortable months (45 to 90°F highs)

Best months: March to June. Typical highs run 91°F in midsummer and 34°F in midwinter, with winter lows near 14°F.

Climate normals: NOAA 1991-2020 monthlies, FISH SPRINGS NWR station (12 mi away), adjusted for elevation.

Geology at Spor Mountain

This spot sits on Laketown Dolomite, mapped as dolostone that formed roughly 445 to 420 million years ago. Chert and agate nodules typically form inside carbonate rock like this and weather out as tough, waxy lumps in soils and creek beds.

Mapped unit
Laketown Dolomite
Age
445–420 Ma (Llandovery to Pridoli)
Rock types
dolostone
Elevation
5,670 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.

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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 Spor Mountain

Each name 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 Spor Mountain.

Across the state line from Spor Mountain

Spor Mountain 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.

Spor Mountain FAQ

Where is Spor Mountain?+
Spor Mountain is in Juab County, Utah, at 39.75879, -113.19742. Nearest road: Eagle Rock.
What rocks and minerals can you find at Spor Mountain?+
Spor Mountain is reported to produce Fluorite, Bertrandite, Carnotite, Chalcedony, Chalcopyrite, Hematite, Magnetite, Pyrite, Quartz.
Is collecting allowed at Spor Mountain?+
Confirm rules before collecting. Land status here is not confirmed. Verify with the managing agency before collecting, federal, state, and tribal rules differ. Always confirm current rules with the managing agency before a trip.
What tools should I bring to Spor Mountain?+
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 Spor Mountain?+
The most comfortable months at Spor Mountain are March to June.
How do I get to Spor Mountain?+
Open the directions link to navigate to 39.75879, -113.19742 in Google Maps. The nearest road is Eagle Rock.

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