1 legal place to look for opal in Washington — fees, seasons, and official sources below.
Hours, fees, and access rules change. Verify with the operator or land agency before you go.
Saddle Mountains Petrified Wood Area
Mattawa, WA
petrified woodagatized woodopalized wood
Public land, rules apply · Free · free, no permit; BLM's petrified wood limit is 25 lb per day plus one piece and no more than 250 lb per year, and pooling quotas between people to take an oversize piece is prohibited. BLM's own page tells visitors to contact the Wenatchee Field Office for collection limits
Checked against its source August 16, 2026
Start with the 1 legal place listed on this page — each shows what you can find, its fees, and its season, with a link to the official source. Hours, fees, and access rules change. Verify with the operator or land agency before you go.
Treat Washington's historic mines as history, not destinations. Most sit on private land or active mining claims, and old workings are dangerous even to walk. The state page's mineral record tells you what the ground holds — the directory tells you where you are welcome to look for it.