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1956 Map of Cadiz Valley

Name: 1956 Topographic Map of Cadiz Valley
Creator: U.S. Geological Survey
Published: 1958
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1958

About this map

The vast, arid expanse of the Cadiz Lake basin and surrounding ranges are meticulously documented in this mid-century survey. The landscape is defined by its engineering and natural boundaries, most notably where the northern edge of the Joshua Tree National Monument meets the Coxcomb Mountains. A critical piece of infrastructure, the Colorado River Aqueduct, snakes through the southeastern corner, supported by a system of siphons, a levee, and a Gaging Station.

Transit through this desert environment follows the Twentynine Palms Highway and the San Bernardino Base Line. The terrain varies from the shifting Sand Dunes near the Kilbeck Hills to the rugged slopes of the Iron Mountains and the lower Pinto Basin. Small-scale human activity is visible in isolated prospects scattered near the San Bernardino and Riverside County line, reflecting the area's mineral interest during this era.