Sun shading (lidar)

Adjust simulated sun direction on the lidar hillshade. Azimuth = compass bearing of the light (0° north, 90° east). Altitude = height above the horizon (low = long shadows).

Historical map overlays

USGS scanned historical topographic maps. Enable an overlay and adjust its opacity. Works in 2D and 3D.

Sun azimuth: 315°   Sun altitude: 45°   Z factor: 1   Lidar opacity: 1
center: —   mouse: —   zoom:

NAPA COUNTY, CALIFORNIA County Gold Locations

Gold Mining Site CA • NAPA COUNTY, CALIFORNIA County County
Description
NAPA COUNTY, CALIFORNIA by Tom Ashworth LOCATION COUNTY: Napa County STATE: California Napa County had a total gold production of around 24,000 ounces the came as a byproduct of silver mining. Near Calistoga, north by 2 miles, you will find the Mt. Saint Helena Mine, the Palisades Mine and the Silverado Mine. ADD INFORMATION ON A GOLD BEARING LOCATION
Historical Notes
Source: Tom Ashworth's Prospectors Cache (tomashworth.com / Mike Higbee / 49erMike). Author: Tom Ashworth. Original page: napa_ca.shtml. State index: https://web.archive.org/web/20040830075749/http://www.tomashworth.com/goldloc.shtml Map coordinates are an approximate county centroid — not a precise claim site. NAPA COUNTY, CALIFORNIA by Tom Ashworth LOCATION COUNTY: Napa County STATE: California Napa County had a total gold production of around 24,000 ounces the came as a byproduct of silver mining. Near Calistoga, north by 2 miles, you will find the Mt. Saint Helena Mine, the Palisades Mine and the Silverado Mine. ADD INFORMATION ON A GOLD BEARING LOCATION
Status / Verification historical_site — Legendary or approximate

Take Add Data / Take Notes

Log in or create an account to save private field notes for this location. Your notes are only visible to you.

Forgot password?

Enter your email and we'll send you a link to reset your password.

Back to log in