Mad River Beach, Arcata

ROCKHOUNDING OPEN / LEGAL DOCUMENTED

Where: California · North America · approx. 40.94, -124.13 (vicinity only)

Why this spot: Long driftwood beach at the Mad River mouth fed by river-borne gravels

What turns up: agate, jasper, petrified wood pebbles

Access: Open / legal.

County beach with customary casual picking.

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.