Where: California · North America · approx. 37.52, -122.2 (vicinity only)
Why this spot: 1850-1905
What turns up: Black glass ales, demijohns, ship's stoneware - lumber-trade signature
Access: Gray area.
Bair/Greco Island margins are NWR - off-limits; stay in non-refuge slough segments; below-MHT gray; port property north side.
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.