Crater Range defines the northwest corner of this arid landscape, where the terrain slopes gradually into a complex drainage system. The desert floor is carved by prominent ephemeral waterways, most notably Midway Wash as it flows toward the northeast and the expansive Tenmile Wash crossing the central and southern portions of the quadrangle. In the southeastern section, the introduction of a modern road grid and infrastructure reflects the encroachment of development and transit corridors upon the traditional wash patterns. This 2011 survey documents the intersection of natural drainage features with human geographic expansion in the Sonoran desert environment.
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This is the sole edition of this map. No revisions or reprints were ever made.
1932 · Ajo
USGS Topo · 1:62,500
1934 · Ajo
USGS Topo · 1:62,500
1953 · Ajo
USGS Topo · 1:250,000
1957 · Ajo
USGS Topo · 1:250,000
1958 · Ajo
USGS Topo · 1:250,000
1958 · Midway
USGS Topo · 1:62,500
1962 · Ajo
USGS Topo · 1:250,000
1963 · Ajo
USGS Topo · 1:250,000
1963 · Ajo
USGS Topo · 1:62,500
1964 · Growler Peak
USGS Topo · 1:62,500