1966 Map of Winchester SW

About this map

Sand Dunes dominate this mid-1960s landscape in Grant County, illustrating the complex irrigation and water management infrastructure of the Columbia Basin Project. The map reveals the intricate path of the Winchester Wasteway and the Frenchman Hills Wasteway, essential components of the regional drainage system designed by the U.S. Bureau of Reclamation. These artificial waterways carve through the terrain, which is defined by the prominent Frenchman Hills and scattered dunes. Small-scale engineering details are meticulously recorded, including a Siphon along the northern 4-lane roadway and a Gaging Station to the south. While largely uninhabited, the survey identifies several wells and a notable Deserted site, providing specific points of interest for researchers studying the mid-century agricultural development and reclamation history of Central Washington.