San Joaquin River — FRESNO COUNTY, CALIFORNIA County

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: —

San Joaquin River — FRESNO COUNTY, CALIFORNIA County

Gold Mining Site CA • FRESNO COUNTY, CALIFORNIA County County
Description
Placer gravels along the San Joaquin River produced 121,000 ounces between 1880 and 1959, when it was part of Madera County. All sand and gravel operations along the San Joaquin River between Friant and Herndon had rich placer gold operations. At the Friant Dam the gravel excavated for use in building the dam produced $196,977 in placer gold between 1940-42. 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: fresno_ca.shtml. State index: https://web.archive.org/web/20040830075749/http://www.tomashworth.com/goldloc.shtml Area: SAN JOAQUIN RIVER. Map coordinates are an approximate county centroid — not a precise claim site. Placer gravels along the San Joaquin River produced 121,000 ounces between 1880 and 1959, when it was part of Madera County. All sand and gravel operations along the San Joaquin River between Friant and Herndon had rich placer gold operations. At the Friant Dam the gravel excavated for use in building the dam produced $196,977 in placer gold between 1940-42. 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?
or

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

Back to log in
or