Where: California · North America · approx. 38.58, -122.58 (vicinity only)
Why this spot: 1862-1915
What turns up: Spa-era mineral waters and sodas, 1870s-90s glass
Access: Gray area.
Resort parcels private and landmarked; the Napa River channel through town is the gray zone; Chinatown site sensitive (PRC 5097.5).
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.