The international border between the United States of America and Estados Unidos Mexicanos cuts across the northeastern corner of this remote desert landscape. This 2018 survey documents a region dominated by the expansive topography of The Great Plain, where the terrain is defined by a complex network of dry washes and intermittent drainage channels. The absence of modern infrastructure or named settlements highlights the isolated character of this borderland in Pima County. The map provides a detailed view of the natural hydrology and subtle contour changes in a part of the Arizona desert where the human footprint is primarily limited to the demarcation of the national boundary line.
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This is the sole edition of this map. No revisions or reprints were ever made.
1954 · Sonoyta
USGS Topo · 1:250,000
1963 · Kom Vo
USGS Topo · 1:62,500
1963 · Lukeville
USGS Topo · 1:250,000
1963 · Diaz Peak
USGS Topo · 1:62,500
1988 · South of Bailey Peak
USGS Topo · 1:24,000
1988 · South of Papago Farms
USGS Topo · 1:24,000
1988 · Bailey Peak
USGS Topo · 1:24,000
1988 · Papago Farms
USGS Topo · 1:24,000
1988 · Menagers Lake
USGS Topo · 1:24,000
1994 · Lukeville
USGS Topo · 1:100,000