Spor Mountain: Fluorite & Bertrandite Rockhounding in Juab County, Utah
Updated June 2026
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.
Spor Mountain photos
Public image records connected to this spot or its reported material.
Map showing Spor Mountain in Juab County, Utah
Quick details
- Access
- Public area
- County
- Juab County
- State
- Utah
- Nearest road
- Eagle Rock
- Coordinates
- 39.75879, -113.19742
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.
Best time to visit Spor Mountain
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.
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:
- BLM Utah — Rockhounding overview
- Utah Geological Survey — collecting guidelines
- SITLA — surface use rules
- Community submissions reviewed against published agency rules
Found at Spor Mountain
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 Spor Mountain.
- Thomas RangeJuab County, Utah · 4 mi awayAgate, Beryl, Chalcedony
- Thomas RangeJuab County, Utah · 5 mi awayBeryl, Calcite, Fluorite
- Topaz Dome QuarryJuab County, Utah · 7 mi away
- Topaz Dome QuarryTop pick in UtahJuab County, Utah · 7 mi awayBeryl, Calcite, Bixbyite
- Dugway RangeTop pick in UtahJuab County, Utah · 11 mi awayBeryl, Chalcedony, Fluorite
- Dugway RangeTooele County, Utah · 14 mi awayAmethyst, Quartz
- Fish SpringsJuab County, Utah · 15 mi awayGold, Lead, Silver
- Drum MountainsJuab County, Utah · 16 mi awayAgate, Jasper, Pyrolusite
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
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