
Aguila Mountains rise sharply in the southeastern corner of this quadrangle, creating a dramatic topographical contrast to the broad expanse of the San Cristobal Valley that dominates the western landscape. This region of Yuma County is defined by its austere desert character and the rectilinear precision of the Public Land Survey System, with township and range lines like t8s r11w and t9s r11.5w segmenting the arid terrain. The map captures the natural drainage patterns and elevation shifts from the Aztec Hills in the north toward the valley floor, illustrating a corner of Arizona where the land remains largely defined by its geologic features rather than human settlement. Researchers of desert geography will find a clear record of the area's unadulterated terrain and the specific cadastral boundaries established by the Bureau of Land Management.
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This is the sole edition of this map. No revisions or reprints were ever made.
1927 · Aguila Mountains
USGS Topo · 1:48,000
1927 · Kim
USGS Topo · 1:62,500
1929 · Aztec
USGS Topo · 1:62,500
1930 · Aguila Mountains
USGS Topo · 1:62,500
1930 · Stoval
USGS Topo · 1:62,500
1931 · Kim
USGS Topo · 1:62,500
1950 · Stoval
USGS Topo · 1:62,500
1950 · Aztec
USGS Topo · 1:62,500
1953 · Ajo
USGS Topo · 1:250,000
1957 · Ajo
USGS Topo · 1:250,000