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1954 Map of Dwinnell Reservoir

Name: 1954 Topographic Map of Dwinnell Reservoir
Creator: U.S. Geological Survey
Published: 1965
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1965

About this map

Little Shasta and the Dwinnell Reservoir dominate this high-desert basin in Siskiyou County, where water management defines the landscape. The geography is marked by complex hydraulic systems, including an extensive network of irrigation features like the Ditch and Flume lines that serve the Shasta River valley. To the east, the volcanic character of the Shasta National Forest becomes evident near Pluto Cave and the Lava Flat, where the Southern Pacific railroad skirts the foothills of Haystack and Yellow Butte.

Evidence of early ranching and community life is found at the Little Shasta Cem and the Hovey Gulch School, while aviation history is noted by an Airway Beacon and several landing strips. The map captures a transition in the valley, showing the relationship between natural water sources like Cold Spring and the man-made infrastructure of the Copco Substation and various pump stations required for agriculture in this arid environment.