Where: California · North America · approx. 38.24, -122.46 (vicinity only)
Why this spot: 1835-1885
What turns up: Potential pre-1870 black glass, early sodas - high risk, high reward
Access: Gray area.
Banks private ag; channel mud below MHT state-gray.
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.