Trip Mountain stands as a prominent landmark in this corner of the Sonoran Desert within La Paz County. The arid landscape is defined by extensive drainage systems, including the serpentine paths of Yuma Wash and McAllister Wash, which carve through the basin floor towards the southwestern reaches of the sheet. To the southeast, the terrain rises into the Chocolate Mountains, providing a stark contrast to the surrounding alluvial plains. This 2011 survey captures the area near Red Hill during a period of modern land management, where the focus remains on the preservation of natural desert features and ephemeral waterways in a region largely devoid of permanent settlements.
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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
1954 · Salton Sea
USGS Topo · 1:250,000
1954 · Red Hill
USGS Topo · 1:62,500