
The Imperial Valley agricultural landscape is defined by an intricate network of irrigation engineering east of the East Mesa desert edge. This 2021 study documents the meticulously gridded water system required for desert cultivation, featuring dozens of named ditches such as the Holtville Six Drain, Pansy Lateral, and Orient Lateral. The East Highline Canal serves as the primary longitudinal artery, separating the irrigated farmland from the more arid, topographically varied terrain of the mesa to the east.
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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 · Iris
USGS Topo · 1:62,500
1940 · Alamorio
USGS Topo · 1:62,500
1942 · El Centro
USGS Topo · 1:250,000
1945 · Alamorio
USGS Topo · 1:62,500
1945 · Iris
USGS Topo · 1:62,500
1953 · Acolita
USGS Topo · 1:24,000
1953 · Acolita
USGS Topo · 1:62,500
1954 · El Centro
USGS Topo · 1:250,000
1954 · Salton Sea
USGS Topo · 1:250,000