Where to Find Petrified Wood in Utah

Utah has 11 mapped collecting spots that report petrified wood, spread across 7 counties. The largest share sits in Grand County with 3 spots. 9 of the spots are on land mapped as publicly accessible.

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

Standout petrified wood spots in Utah

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

San Rafael Swell
Emery County
The San Rafael Swell is a broad exposed anticline where Morrison, Curtis, and Cedar Mountain strata carry local agate, jasper, chalcedony, petrified wood, and dinosaur-bone material.
Hanksville
Wayne County
The Hanksville and Caineville stretch of Wayne County is a strong public-land agate and petrified-wood area because weathering has released chalcedony, chert, jasper, and silicified wood from Mesozoic sedimentary rocks.

Best counties for petrified wood in Utah

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

Every petrified wood spot we track in Utah

Sorted by county. Coordinates open in Google Maps.

Spot	County	Minerals	Coordinates	Access
Castle DaleCedar Hollow Trail	Emery County	Agate Agatized Dinosaur Bone Petrified Wood	39.2274, -110.8866	Public
San Rafael Swell	Emery County	Agatized Wood Amethyst Carnotite Petrified Wood Agate Chalcedony Chert Petrified Dinosaur Bone +1 more	38.9221, -110.5309	Public
Circle Cliffs	Garfield County	Agate Chalcedony Jasper Petrified Wood Silicified Wood	37.9962, -111.1291	Permission
SE Grand County	Grand County	Agate Chalcedony Chert Silicified Dinosaur Bone Petrified Wood	38.6512, -109.5572	Permission
Thompson SpringsCR 146	Grand County	Agate Agatized Clams Anhydrite Carnotite Gypsum Jasper Jasperized Dinosaur Bone Petrified Wood	38.8657, -109.7045	Public
Thompson SpringsCR 164	Grand County	Agate Agatized Clams Jasper Petrified Wood Corvusite Selenium Uraninite Autunite	38.8370, -109.5310	Public
Cedar CityCedar Canyon Road	Iron County	Agate Moss Agate Chalcedony Jasper Petrified Wood	37.6512, -112.9749	Public
OrdervilleUpper Sand Wash	Kane County	Septarian Nodules Agate Anhydrite Geode Gypsum Petrified Wood	37.2392, -112.6508	Public
Sweet Water CanyonBitter Creek Road	Uintah County	Agate Chalcedony Jasper Petrified Wood	39.8397, -109.4128	Public
HanksvilleFairview Ranch Road	Wayne County	Agate Jasper Petrified Wood	38.3615, -110.7113	Public
HanksvilleOld Highway Road	Wayne County	Agate Jasper Petrified Wood	38.3738, -110.7812	Public

Before you go

Read the petrified wood identification guide so you know what a keeper looks like in the field: Petrified Wood in the encyclopedia.

Petrified Wood in Utah FAQ

Where can you find petrified wood in Utah?+

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

How many petrified wood spots are mapped in Utah?+

11 spots across 7 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 petrified wood 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 11 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.

Where else to find petrified wood

More minerals to hunt in Utah

Hunt petrified wood 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.