Where: Washington · North America · approx. 47.29, -122.51 (vicinity only)
Why this spot: 1905 historic-map era
What turns up: Amber and cobalt glass, insulators and slag glass from the ASARCO smelter era rolling in the tideline cobbles.
Access: Gray area.
State-owned tidelands and public shoreline; casual surface collecting tolerated near the reclaimed smelter site.
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.