The Alamo River winds through the heart of the Imperial Valley in this detailed survey of agricultural engineering and settlement. Small communities such as Alamorio, Moss, and Orita are linked by a complex, grid-like network of irrigation and drainage infrastructure essential to the region's desert-to-farmland transformation. The landscape is defined by the repetitive geometry of lateral canals and drains, including the Moorhead Canal and Holtville-Main-Drain, which crisscross the valley floor alongside local thoroughfares like Co Hwy S27 and Griffin Rd. This intricate system of water management showcases the specialized local geography of Imperial County in the early 21st century, where named features like Curlew and Sandia anchor a strictly managed hydraulic environment. Researchers will find a complete record of the named canals, drains, and laterals that sustain these desert communities.
124 named features on this map. Tap any name to fly to it.
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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
1915 · El Centro
USGS Topo · 1:125,000
1940 · Brawley
USGS Topo · 1:62,500
1940 · Iris
USGS Topo · 1:62,500
1940 · Alamorio
USGS Topo · 1:62,500
1942 · El Centro
USGS Topo · 1:250,000
1943 · Brawley
USGS Topo · 1:62,500
1944 · Calipatria
USGS Topo · 1:62,500
1945 · Alamorio
USGS Topo · 1:62,500
1945 · Iris
USGS Topo · 1:62,500