2021 Map of Mule Wash

About this map

The Colorado River defines the border between Arizona and California, cutting through a landscape of broad alluvial basins and arid mountain slopes. On the western bank, the Palo Verde Valley is marked by water management features like the D 23-1 Canal, Borrow Pit Drain, and D 23 Spill, reflecting the agricultural development of the region. To the east, the Great Colorado Valley gives way to the sharp elevations of the Trigo Mountains, where numerous ephemeral drainages such as Mule Wash, Mohave Wash, and the colorfully named Crazy Woman Wash carry runoff toward the river. This 2021 survey illustrates the contrast between the organized infrastructure along Levee Rd and the open desert terrain traversed by the Ehrenberg-Cibola Rd, documenting the intersection of modern hydrology and the natural topography of the Lower Colorado River valley.