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1940 Map of Dome Rock Mts.

Name: 1940 Topographic Map of Dome Rock Mts.
Creator: U.S. Geological Survey
Published: 1940
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1940

About this map

The Dome Rock Mountains dominate this arid landscape during the mid-1930s, serving as a backdrop for a scattering of hard-rock mining operations. From the Iron Basin Mine in the north to the Cinnabar Mine and Copper Chief Mine further south, the map documents a period of active mineral exploration and extraction. A network of primitive roads and trails connects these remote sites, weaving through prominent gaps like Boyer Gap and Diablo Pass.

Water security is the defining factor for survival and industry here, evidenced by the strategic placement of Lafour Well, Gonzales Well, and Tule Springs. The western edge of the survey captures the Colorado River and the Colorado River Indian Reservation Boundary, while the main thoroughfare of U.S. Route 60 70 provides the primary link to the outside world, crossing the desert plains south of La Paz Mountain.