Where: Oregon · North America · approx. 43.45, -117.13 (vicinity only)
Why this spot: Miocene lakebed
What turns up: Thundereggs, green moss agate, petrified wood and opal in the state natural area and BLM ground
Access: Gray area.
State Natural Area itself restricts collecting; adjacent BLM land is open to hobby collecting.
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.