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1990 Map of Rattlesnake Butte

Name: 1990 Topographic Map of Rattlesnake Butte
Creator: U.S. Geological Survey
Published: 1990
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1990

About this map

The Warm Springs River and its meandering tributaries define the landscape of this high-desert region in Modoc County. Centered around the base of Rattlesnake Butte, the map documents a transition toward rural development and water management during the late 20th century. The southern portion of the sheet highlights the planned grid of the California Pines Airport vicinity, featuring infrastructure such as a Water Filtration Plant and the Delmorma School.

Water control is a primary theme, with several man-made impoundments like Donovan Reservoir and Kelly Reservoir scattered throughout the valley. Natural water sources are also prominent, including Portuguese Spring and Mary Pete Spring, which have long served as vital landmarks in this arid terrain. The map also traces the path of the Rattlesnake Ditch and the expansive Rye Grass Swale, illustrating how the land has been utilized for both aviation and local agriculture.