
Trigo Mountains terrain dominates this 1960s survey of the Arizona desert, where the landscape is defined by jagged ridges and intricate drainage systems. The map captures a transition between public land and the Yuma Proving Ground, marked by a Military Reservation Boundary that cuts through the arid valley floors. Local industrial history is recorded at the Hart Mine and a nearby Gravel Pit, providing evidence of the small-scale resource extraction that punctuated the high-desert environment. Seasonal hydrology is clearly mapped through numerous arroyos, including the descriptively named Crazy Woman Wash, Hart Mine Wash, and Gould Wash. Navigating the steep slopes, Jeep Trails offer the only routes toward landmarks such as the Needles Eye, reflecting the isolation of this corner of Yuma County.
11 named features on this map. Tap any name to fly to it.
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3 editions found
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