Explore › California bottle digging
Guerneville / Rio Nido / Guernewood bars
BOTTLE DIGGING
GRAY AREA
INFERRED
Where: California · North America · approx. 38.5, -123.0 (vicinity only)
Why this spot: 1877-1935
What turns up: 1900s-30s resort glass; earlier mill-era at Guerneville proper
Access: Gray area.
County park at the beach (no digging); riverbed bars gray; banks private resorts.
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.