2011 Map of Fortuna SW

About this map

Fortuna Wash dominates the eastern landscape of this Yuma County quadrangle, showing a complex drainage pattern through the arid terrain of southwest Arizona. The map illustrates a primarily undeveloped region where the desert floor is etched by numerous ephemeral stream channels and washes that feed into the larger wash system. Human infrastructure is limited to the northern portion of the sheet, where Avenue 10th E cuts across the grid, providing a solitary point of reference for researchers tracing the expansion of road networks and land divisions near Yuma. The contour lines reveal a subtle but steady elevation change, characteristic of the low desert plains leading toward the Gila River valley.