Where: West · North America · approx. 45.6, -121.18 (vicinity only)
Why this spot: Oregon Trail Columbia Gorge port on the Columbia River
What turns up: 1850s-1900s Pacific Northwest bottles, Western glass and stoneware.
Access: Gray area.
Columbia and coastal river frontages: navigable waterways are often state-owned to the high-water mark; digging above it needs the landowner's permission and state antiquities law protects old sites. Confirm before you dig.
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.