Yuma Proving Ground defines the eastern boundary of this desert landscape in La Paz County, where the military installation overlaps with the natural drainage of the region. The map is centered on the extensive network of Indian Wash, which meanders across the arid terrain from the southwest toward the military zone. A single primary transportation corridor, US Route 95, bisects the eastern portion of the quadrangle, serving as the main artery through this sparsely developed area. The convergence of these few features—a major wash, a strategic military reservation, and a lone highway—illustrates the characteristic land use and isolation of the Arizona desert during this era.
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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
1954 · Salton Sea
USGS Topo · 1:250,000
1954 · Red Hill
USGS Topo · 1:62,500
1954 · Trigo Peaks
USGS Topo · 1:62,500
1955 · Salton Sea
USGS Topo · 1:250,000
1959 · Salton Sea
USGS Topo · 1:250,000
1962 · Livingston Hills
USGS Topo · 1:62,500