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California

Mad River Beach, Arcata

Agate beach or gravel Documented siteLegal to collect
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What you could find

Reported finds from this ground.

Agates and jasperAgates and jasper
Petrified woodPetrified wood

Photos via Wikimedia Commons: Teerui (Public domain), Jon Sullivan (Public domain).

Why this spot

Long driftwood beach at the Mad River mouth fed by river-borne gravels

Documented Humboldt agate beach in regional write-ups.

Before you go

Hazards noted for this site.

strong surf, river mouth currents

Keep exploring nearby

More spots in this area.

Check access and collecting rules for each site.
Arcata, CA: Arcata Bay head of Humboldt Bay9 km away · Tidal mudflat
›
Moonstone Beach, Trinidad CA: county park agates10 km away · Agate beach or gravel
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Eureka: Humboldt Bay waterfront16 km away · Tidal mudflat
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Sue-meg State Park, Trinidad CA: Agate Beach22 km away · Agate beach or gravel
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