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This map, created in May 1917, depicts the Palo Verde Valley to the west of the Colorado River and encompasses parts of Riverside and Imperial Counties in California. The map highlights the agricultural and irrigation infrastructure that supported the valley's development in the early 20th century. Key features include the canals, railroads, and mesa edges, all clearly delineated in the legend. The outlined area of the Palo Verde Valley is shaded in light orange to emphasize its geographical extent.
The map shows the path of the Colorado River as it winds next to the valley south to Mexico. Notable features such as the Headworks Intake at the northern end and the Laguna Dam at the southern edge are illustrated. Towns, including Palo Verde, Ehrenburg, and Yuma, are labeled, along with smaller settlements and landmarks like Castle Dome Landing and Maggie’s Well. The Yuma Indian Reservation and international boundary with Mexico are also marked.
Signed in the plate by Gunn, the map reflects the detailed survey work of the period and its focus on supporting agricultural development through irrigation and transportation planning.
This map captures the infrastructure and geography of the Palo Verde Valley at a critical moment in its development, reflecting the importance of irrigation and land-use planning in the American West during the early 20th century. It provides insight into the transformation of arid regions into productive agricultural lands, an effort that shaped the economy and demographics of the area.
Rarity
No copies located in OCLC nor in general internet searches.
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