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California

Vallejo old waterfront / Mare Island Strait east bank

Tidal mudflat Inferred from historyGray area

What you could find

Reported finds from this shoreline.

Sea potterySea pottery

Photos via Wikimedia Commons: NPS (Public domain).

Why this spot

Briefly state capital 1852-53; navy yard across the strait from 1854

Inference from port/navy history.

Before you go

Hazards noted for this site.

Navy-era contamination on the island side.

Keep exploring nearby

More spots in this area.

Check access and collecting rules for each site.