1966 Map of Winchester SE

About this map

Winchester Wasteway defines the hydrological character of this Grant County landscape, winding through a complex of Sand Dunes and agricultural infrastructure. Revisions from the mid-1970s illustrate the evolution of the Columbia Basin Project's irrigation and power systems, including the Potholes Substation and various water control features. The terrain is marked by specific local landmarks such as McEwen, Eve, and a Radio Tower, while Dodson Road serves as a primary north-south transit corridor across the desert floor. The map highlights the intersection of natural dune formations and the industrial footprint of the era, seen in features like the Storage Bin and a highway Rest Area. This survey represents the mid-century transformation of the arid Washington interior into a managed irrigation landscape.