Trigo Mountains dominate the eastern landscape of this La Paz County region, rising sharply above the desert floor. The area is defined by its dramatic drainage patterns, where seasonal waters move through Crazy Woman Wash and Gould Wash toward the Great Colorado Valley. To the south, the prominent landmark Needles Eye marks a distinct break in the mountain terrain. This 2014 survey documents the sparse but critical infrastructure of the high desert, including Baseline Rd and Hart Mine Rd, which likely served historical mining interests in the interior. The network of arid watercourses, such as Hart Mine Wash and Lopez Wash, illustrates the topographic character of a landscape where elevation and water access dictated early travel and land use.
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This is the sole edition of this map. No revisions or reprints were ever made.
1934 · Trigo Peaks
USGS Topo · 1:48,000
1939 · Red Hill
USGS Topo · 1:62,500
1939 · Trigo Peaks
USGS Topo · 1:62,500
1942 · Blythe
USGS Topo · 1:250,000
1945 · Cibola
USGS Topo · 1:62,500
1945 · Picacho
USGS Topo · 1:62,500
1951 · Picacho
USGS Topo · 1:62,500
1951 · Cibola
USGS Topo · 1:62,500
1952 · Mule Wash
USGS Topo · 1:24,000
1952 · Palo Verde
USGS Topo · 1:24,000