Where: California · North America · approx. 38.04, -122.14 (vicinity only)
Why this spot: 1851-1905
What turns up: (observe only)
Access: Prohibited / view only.
Ex-federal arsenal: possible UXO, historic district, port/industrial ownership, PRC 5097.5. Recon from public trail only.
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.