
Agricultural precision in the Imperial Valley is the defining characteristic of this mid-1950s survey, dominated by a dense grid of irrigation infrastructure. The Alamo River snakes through the center of the landscape, its natural curves contrasting sharply with the rigid lines of the Central Canal, Mesquite Canal, and dozens of numbered laterals like Acacia Lateral 10. This network supported the growth of Holtville and the research at the University of California Imperial Valley Field Station near Meloland.
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4 editions found
1907 · Holtville
USGS Topo · 1:125,000
1915 · El Centro
USGS Topo · 1:125,000
1940 · Brawley
USGS Topo · 1:62,500
1940 · Heber
USGS Topo · 1:62,500
1940 · Alamorio
USGS Topo · 1:62,500
1940 · Calexico
USGS Topo · 1:62,500
1942 · El Centro
USGS Topo · 1:250,000
1943 · Heber
USGS Topo · 1:62,500
1943 · Brawley
USGS Topo · 1:62,500
1943 · Calexico
USGS Topo · 1:62,500