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.

Best counties for anhydrite in Utah

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

Every anhydrite spot we track in Utah

Sorted by county. Coordinates open in Google Maps.

Spot	County	Minerals	Coordinates	Access
Duchesne CountyWest Main Street	Duchesne County	Analcite Anhydrite Crocidolite Fluorapatite Illite Pyrite Bassanite Dawsonite +2 more	40.1634, -110.4014	Public
Cedar Mountain areaGreen River Cutoff	Emery County	Agate Anhydrite Carnotite Chalcedony Jasper Gypsum Uraninite	39.1599, -110.6158	Public
San Rafael RiverHatts Ranch Road	Emery County	Agate Anhydrite Carnotite Chalcedony Gypsum Jasper Selenite Sulfur	38.9018, -110.3749	Public
Cannonville2nd South Street	Garfield County	Anhydrite Gypsum	37.5630, -112.0485	Public
Thompson SpringsCR 146	Grand County	Agate Agatized Clams Anhydrite Carnotite Gypsum Jasper Jasperized Dinosaur Bone Petrified Wood	38.8657, -109.7045	Public
Cedar CanyonCedar Canyon Road	Iron County	Anhydrite Carnotite Gypsum Selenite	37.5945, -112.9124	Public
KanarravilleEast 200 North Street	Iron County	Anhydrite Autunite Gypsum	37.5362, -113.1703	Public
GlendaleGlendale Bench Road	Kane County	Anhydrite Gypsum	37.3218, -112.5884	Public
Kanab CreekCreekside Drive	Kane County	Silicified Wood Anhydrite Gypsum	37.0188, -112.5348	Public
Kimball Valley	Kane County	Anhydrite Gypsum	37.1623, -112.0949	Public
OrdervilleUpper Sand Wash	Kane County	Septarian Nodules Agate Anhydrite Geode Gypsum Petrified Wood	37.2392, -112.6508	Public
FillmoreChalk Creek Canyon Road	Millard County	Anhydrite Gypsite Gypsum Niter	38.9525, -112.2605	Public
Kanosh	Millard County	Anhydrite Gypsum	38.7874, -112.3850	Public
Gypsum Creek	San Juan County	Anhydrite Gypsum	38.0043, -110.0680	Public
Moab ValleyLa Sal Loop Road	San Juan County	Anhydrite Carnallite Gypsum Halite Polyhalite Sylvite	38.4771, -109.4386	Public
Monticello mining districtCooley Pass Trail	San Juan County	Anhydrite Carnotite Gypsum Pyrite Chalcopyrite Galena Gold Sphalerite +4 more	37.8313, -109.4670	Public
San Juan River	San Juan County	Anhydrite Chalcopyrite Copper Gold Gypsum Malachite	37.2782, -109.4125	Public
Gunnison	Sanpete County	Anhydrite Gypsum Halite	39.1258, -111.7438	Public
Mayfield	Sanpete County	Anhydrite Gypsum Halite	39.1096, -111.7281	Public
GlenwoodRace Loop	Sevier County	Anhydrite Geode Gypsum Halite Selenite	38.7875, -111.9547	Public
Sevier CanyonSevier Canyon Road	Sevier County	Alunite Anhydrite Gypsum Limonite	38.5431, -112.3896	Public
Sigurd	Sevier County	Anhydrite Gypsum Halite Selenite	38.8502, -111.9421	Public

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 County, San Juan County County, and Sevier County 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 appears on the map above with 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. 22 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.