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1968 Map of Castle Dome Mts

Name: 1968 Topographic Map of Castle Dome Mts
Creator: U.S. Geological Survey
Published: 1968
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1968

About this map

Castle Dome Mine and the surrounding mineral-rich slopes of the Castle Dome Mts. define this desert landscape during the late 1960s. This Army Map Service edition captures the high concentration of mining activity along the western range, including the Hull Mine, Colorado Mine, and Keystone Mine. These sites, tucked into steep drainages like Miller Wash and Gravel Wash, represent a long history of extraction in Yuma County.

The terrain transitions from the jagged heights of Castle Dome Peak and Thumb Peak into the expansive King Valley and La Posa Plain. Water sources, critical for both mining operations and wildlife, are meticulously documented through features such as Doc Carter Spring, Kofa Deep Well, and numerous tanks like McPherson Tank. Large portions of the area fall under the jurisdiction of the Kofa Game Range and the Yuma Proving Ground Mil Res, highlighting the dual 20th-century priorities of conservation and military testing.