East Mesa dominates this arid landscape at the border, revealing the infrastructure required for power and transport in a desert environment. The map highlights critical water and energy management points, specifically Power Drop Number Four and Power Drop Number Three, which sit along the canal systems that define the region's geography. Transportation across this stretch is anchored by the diagonal path of Evan Hewes Hwy and the branching Desert Rd. This survey, conducted by the U.S. Geological Survey, uses data from the International Boundary and Water Commission to record the precise terrain where industrial utility meets the open desert.
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This is the sole edition of this map. No revisions or reprints were ever made.
1907 · Holtville
USGS Topo · 1:125,000
1940 · Alamorio
USGS Topo · 1:62,500
1940 · Calexico
USGS Topo · 1:62,500
1942 · El Centro
USGS Topo · 1:250,000
1943 · Calexico
USGS Topo · 1:62,500
1945 · Alamorio
USGS Topo · 1:62,500
1953 · Calexico
USGS Topo · 1:50,000
1954 · El Centro
USGS Topo · 1:250,000
1954 · Midway Well NW
USGS Topo · 1:24,000
1954 · Glamis SE
USGS Topo · 1:24,000