Where to Find Petrified Wood in Wyoming
Wyoming has 7 mapped collecting spots that report petrified wood, spread across 4 counties. The largest share sits in Sweetwater County with 4 spots. 4 of the spots are on land mapped as publicly accessible, and 1 is a fee-dig site.
Spot list checked against source data on April 1, 2026.
Every petrified wood spot we track in Wyoming
Best spotKemmererLincoln County, WyomingPublic access · Turritella Agate, Chalcedony, Chert +4
Sweetwater CountySweetwater County, WyomingPublic access · Agate, Chalcedony, Chert +5- Blacks Fork CreekUinta County, WyomingPublic access · Silicified Algae, Turritella Agate, Chalcedony +3
BuffaloJohnson County, WyomingPermission required · Agate, Chalcedony, Gastrolith +3- Steamboat MountainSweetwater County, WyomingPermission required · Agate, Chalcedony, Jasper +1
- Blue ForestSweetwater County, WyomingPublic access · Petrified Wood
- Eden ValleySweetwater County, WyomingFee dig · Petrified Wood
Standout petrified wood spots in Wyoming
Hand-picked from the full list above, with the reason each one earns a trip.
Best counties for petrified wood in Wyoming
Ranked by the number of mapped petrified wood spots. County links open the full rockhounding page for that county.
- Sweetwater County4 spots
- Johnson County1 spot
- Lincoln County1 spot
- Uinta County1 spot
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 Wyoming FAQ
Where can you find petrified wood in Wyoming?+
The mapped spots concentrate in Sweetwater County, Johnson County, and Lincoln County. Every spot on this page is on the map, and each spot's own page has its coordinates and access notes.
How many petrified wood spots are mapped in Wyoming?+
7 spots across 4 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 Wyoming?+
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. 4 of the 7 mapped spots here sit on land marked public, and 1 is a fee-dig operation where you pay for access and keep what you find. Always confirm current rules with the managing agency before you dig.
Where else to find petrified wood
More minerals to hunt in Wyoming
Hunt petrified wood in Wyoming 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.
