1988 Map of Little Mule Mountains

About this map

The Little Mule Mountains dominate this arid landscape within Imperial County, serving as a prominent north-south ridge that defines the local topography. This 1988 survey illustrates a region largely characterized by wide desert washes and rugged upland terrain, where Milpitas Wash and Arroyo Seco carve through the sedimentary floor. The eastern half of the map opens into the broad Smoketree Valley, while the southern reaches are marked by the presence of the Aerial Gunnery Range, indicating the area's role in military training operations during the late 20th century.