The Colorado River forms a sharp geographical and political divide on this 2018 survey, separating Riverside and La Paz counties as well as California and Arizona. To the west, the Palo Verde Valley shows a managed landscape defined by water engineering, including the D-23-1 Canal, D 23 Spill, and Borrow Pit Drain. This fertile valley floor contrasts sharply with the arid eastern bank, where the Great Colorado Valley meets the rising elevations of the Trigo Mountains. The desert terrain is dissected by numerous drainage systems, most notably the namesake Mule Wash, along with Mohave Wash and the distinctively named Crazy Woman Wash. These ephemeral watercourses illustrate the natural drainage patterns of the desert floor before they reach the main river channel. Primitive desert routes like Ehrenberg-Cibola Rd provide the primary access through this remote borderland.
26 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1933 · Cunningham Mtn
USGS Topo · 1:48,000
1934 · Trigo Peaks
USGS Topo · 1:48,000
1939 · Trigo Peaks
USGS Topo · 1:62,500
1940 · Dome Rock Mts
USGS Topo · 1:62,500
1942 · Blythe
USGS Topo · 1:250,000
1945 · Cibola
USGS Topo · 1:62,500
1951 · Blythe
USGS Topo · 1:24,000
1951 · Cibola
USGS Topo · 1:62,500
1952 · Mule Wash
USGS Topo · 1:24,000
1952 · Palo Verde
USGS Topo · 1:24,000