2012 Map of Parker SW

About this map

The Colorado River defines this landscape on the California-Arizona border, winding through a series of dramatic turns including Gravel Hill Bend and passing by Deer Island. The map illustrates a highly organized agricultural and irrigation system, evidenced by the strict grid of numbered avenues and various water control features like Lateral Twenty-seven R-25 and the Twelvemile Slough. This network services the fertile Vidal Valley, where drainage from Vidal Wash meets the river's floodplain.