Trigo Mountains terrain dominates this corner of the desert landscape, where steep contours define the local topography near Needles Eye. To the west, the land transitions into the Great Colorado Valley, a broad expanse that stands in contrast to the high ridges of the interior. The drainage network is characterized by several named desert washes, including Crazy Woman Wash and Mule Wash, which reveal the pathways of seasonal runoff through the arid environment. Human access is limited to a few specific corridors such as Hart Mine Rd and Island Unit Rd, reflecting the remote nature of this portion of La Paz County. The presence of Hart-Mine Wash suggests historical connections to mining activity that once shaped the navigation of these canyons.
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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