Wellton Hills defines the western landscape of this southwestern Arizona region, where the terrain is dominated by complex drainage systems. The most prominent of these is Coyote Wash, which branches extensively across the valley floor, illustrating the ephemeral water patterns characteristic of the Yuma County desert. This 2011 survey documents a largely undeveloped landscape, though it identifies critical water sources like Baker Tanks in the northeastern corner, which have historically served as vital points for travelers and local wildlife. On the eastern edge, Coyote Peak rises as a distinct landmark overlooking the desert flats. Human infrastructure is minimal on this sheet, primarily limited to local transit corridors such as Avenue 30E, providing a clear look at the area's natural state before further modernization.
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This is the sole edition of this map. No revisions or reprints were ever made.
1926 · Wellton
USGS Topo · 1:62,500
1926 · Mohawk
USGS Topo · 1:62,500
1928 · Mohawk
USGS Topo · 1:62,500
1929 · Wellton
USGS Topo · 1:62,500
1942 · Yuma
USGS Topo · 1:250,000
1953 · Ajo
USGS Topo · 1:250,000
1954 · El Centro
USGS Topo · 1:250,000
1955 · El Centro
USGS Topo · 1:250,000
1957 · Ajo
USGS Topo · 1:250,000
1958 · Ajo
USGS Topo · 1:250,000