Where: NorCal · approx. 37.94, -122.48 (vicinity only)
Why this spot: Prison ship Waban 1851-52, cellblocks from 1854; guard village + ferry landing at the point until the 1956 bridge
Access: Gray area.
Everything west of the CDCR boundary is active state prison property: do not approach from the water or the shore, period. The village beach and cove EAST of the gate are state tideland gray zone like Benicia.
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.