Where: West · North America · approx. 39.36, -112.02 (vicinity only)
Why this spot: red agate, chalcedony
What turns up: BLM ground near Yuba Reservoir produces red and banded agate and chalcedony across desert float fields.
Access: Open / legal.
Open public collecting under BLM or public-land casual-use rules: reasonable personal amounts, hand tools, no claim-jumping, no resale. Confirm current status before you go.
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.