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2018 Map of Adelaide

Name: 2018 Topographic Map of Adelaide
Creator: U.S. Geological Survey
Published: 2018
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2018

About this map

Sonoma Peak dominates the high-elevation landscape of the Sonoma Range in this modern survey of Humboldt County. The terrain is defined by a complex network of canyons and drainages, including Sonoma Canyon and Clearwater Canyon, which funnel seasonal runoff toward the desert floor. Named springs such as Reinhart Spring, Ridge Top Spring, and Harry Kaul Spring are critical water sources in this arid environment, often serving as the primary markers for ranching activity and backcountry navigation.

The presence of George Baine Meadows and Stony Basin suggests pockets of grazing land amidst the higher ridges. Evidence of human infrastructure is sparse, limited primarily to the Rock Creek Ranch Rd in the northeast and unnamed trails that connect the high valleys. Land divisions like Big Squaw Valley and Little Squaw Valley indicate the topographic partitions that historically organized movement through the mountains.