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Where to Find Anhydrite in Utah

Anhydrite in Utah comes from the Paradox evaporite sequence and the Carmel Formation. Massive blue-gray anhydrite is exposed in the cliffs around Crystal Geyser south of Green River in Emery County, and the Paradox Valley salt anticline carries anhydrite beds interbedded with halite and gypsum. The Cane Creek potash plant area near Moab has produced specimen-grade tabular anhydrite from drill core. Anhydrite dehydrates rapidly to gypsum in surface conditions, so collected pieces should be kept dry and sealed. Most surface anhydrite has already converted, and the crystallographic specimens come from underground exposures.

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

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Every anhydrite spot we track in Utah

Best counties for anhydrite in Utah

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

Before you go

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

Anhydrite in Utah FAQ

Where can you find anhydrite in Utah?+
The mapped spots concentrate in Kane County, San Juan County, and Sevier County. Known collecting areas include Crystal Geyser area (Emery County), Paradox Valley anticline (Grand County), and Cane Creek potash workings (San Juan County). Every spot on this page is on the map, and each spot's own page has its coordinates and access notes.
How many anhydrite spots are mapped in Utah?+
22 spots across 10 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 anhydrite 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. 16 of the 22 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.

More minerals to hunt in Utah

Hunt anhydrite 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.

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