Where to Find Petrified Wood in Utah
Utah has 12 mapped collecting spots that report petrified wood, spread across 7 counties. The largest share sits in Grand County with 4 spots. 9 of the spots are on land mapped as publicly accessible.
Spot list checked against source data on April 1, 2026.
Every petrified wood spot we track in Utah
Best spotSan Rafael SwellEmery County, UtahPublic access · Agatized Wood, Amethyst, Carnotite +6
Best spotHanksvilleWayne County, UtahPublic access · Agate, Jasper, Petrified Wood
Thompson SpringsGrand County, UtahPublic access · Agate, Agatized Clam, Anhydrite +5
Thompson SpringsGrand County, UtahPublic access · Agate, Agatized Clam, Jasper +5
OrdervilleKane County, UtahPublic access · Septarian Nodule, Agate, Anhydrite +3
Cedar CityIron County, UtahPublic access · Agate, Moss Agate, Chalcedony +2
Circle CliffsGarfield County, UtahPermission required · Agate, Chalcedony, Jasper +2
SE Grand CountyGrand County, UtahPermission required · Agate, Chalcedony, Chert +2
Poison StripGrand County, UtahCheck locally · Carnotite, Agate, Petrified Wood +1
Sweet Water CanyonUintah County, UtahPublic access · Agate, Chalcedony, Jasper +1
Castle DaleEmery County, UtahPublic access · Agate, Agatized Dinosaur Bone, Petrified Wood
HanksvilleWayne County, UtahPublic access · Agate, Jasper, Petrified Wood
Standout petrified wood spots in Utah
Hand-picked from the full list above, 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.
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.
