Where: Washington · North America · approx. 46.86, -119.86 (vicinity only)
Why this spot: Rockhounding locality: petrified wood in Miocene Columbia River Basalt interbeds (Ginkgo flow region)
What turns up: petrified wood, agatized wood, opalized wood
Access: Gray area.
Collecting is allowed on BLM portions (hand tools, respect private property/no-trespassing signs) but is prohibited within Ginkgo Petrified Forest State Park; confirm land status.
Open in Mudlark Map →
Satellite view, historic-map overlays, tide/flow context and field notes are in the app. Exact research detail is part of Pro.
Pins are approximate by design. This page is historical research, not permission to dig. Check ownership and local law first.