Where to Find Petrified Wood in Idaho
Idaho has 7 mapped collecting spots that report petrified wood, spread across 6 counties. The largest share sits in Owyhee County with 2 spots. 5 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 Idaho
Ada CountyAda County, IdahoPublic access · Agate, Chalcedony, Jasper +2
Salmon RiverIdaho County, IdahoPermission required · Agate, Chalcedony, Jasper +1- CascadeValley County, IdahoPublic access · Agate, Petrified Wood
- Homedale (area)Owyhee County, IdahoPublic access · Agate, Petrified Wood
- LeesburgLemhi County, IdahoCheck locally · Gold, Petrified Wood
- Malm GulchCuster County, IdahoPublic access · Agate, Petrified Wood
- McBride CreekOwyhee County, IdahoPublic access · Petrified Wood
Best counties for petrified wood in Idaho
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.
Petrified Wood in Idaho FAQ
Where can you find petrified wood in Idaho?+
The mapped spots concentrate in Owyhee County, Ada County, and Custer 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 Idaho?+
7 spots across 6 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 Idaho?+
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. 5 of the 7 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 Idaho
Hunt petrified wood in Idaho 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.
