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California

Napa River flats below downtown

Riverbank, tidal 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

1850s river port; steamer landings

Inference.

Keep exploring nearby

More spots in this area.

Check access and collecting rules for each site.