1966 Map of Winchester SE

About this map

The Winchester Wasteway defines the central landscape of this mid-1960s Grant County map, carving through an environment shaped by extensive Sand Dunes. This region reflects the mid-century development of the Columbia Basin Project, where the movement of water for irrigation fundamentally altered the high desert. The presence of the Potholes Substation and a prominent Radio Tower indicate the area's role in the regional power and communications grid. Near the intersection of Dodson Road, the map identifies localized landmarks such as McEwen and a Borrow Pit, providing specific touchpoints for local historians tracking land use and resource extraction. The contrast between the engineered water system and the natural sand formations highlights the complex land management of the central Washington interior during this era of intensive agricultural expansion.