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:

IMPERIAL COUNTY, CALIFORNIA County Gold Locations

Gold Mining Site CA • IMPERIAL COUNTY, CALIFORNIA County County
Description
IMPERIAL COUNTY, CALIFORNIA
Historical Notes
Source: Tom Ashworth's Prospectors Cache (tomashworth.com / Mike Higbee / 49erMike). Author: Tom Ashworth. Original page: imperial_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. IMPERIAL COUNTY, CALIFORNIA
Status / Verification historical_site — Legendary or approximate

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