Where: California · North America · approx. 37.9, -122.68 (vicinity only)
Why this spot: 1850-1900
What turns up: 1860s-90s black glass, schooner-trade debris - mostly look/record
Access: Restricted.
Bolinas Lagoon is a county open-space ecological reserve - no digging/collecting in the preserve; channel-edge below MHT gray at best. Be discreet and respectful.
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.