1956 Map of Wilson Creek SW

About this map

The intricate hydraulic systems of the mid-century Columbia Basin Project dominate this 1956 landscape in Grant County. The Low East Canal cuts through the western sections, accompanied by engineering features such as a Siphon, a significant Levee, and a prominent Spoil Bank. These features reflect the post-war transformation of the arid Washington interior into irrigated farmland. In the southern portion of the quadrangle, water collects in Black Lake and Artesian Lake, which sit at the base of the dramatic Rock Coulee landform. Evidence of local habitation and industry is sparse but present, including the settlement of Olson and a nearby Barrow Pit, providing a clear record of the area's transition toward modern agricultural infrastructure.