1962 Map of Umatilla

About this map

McNary Dam dominates this section of the Columbia River, separating Lake Umatilla from Lake Wallula. The map details a complex landscape of mid-century infrastructure and desert irrigation, including the Threemile Falls Diversion Works and an extensive network of canals like the West Extension Irrigation Canal and Brownlee Ditch. On the Oregon shore, the town of Umatilla and its newer satellite communities like Power City and McNary are linked by the Union Pacific railroad and the Umatilla Toll Bridge leading across to Plymouth, Washington. Notable local landmarks include the New City Cem, the Rodeo Grounds, and several historic routes such as the Yakima Wagon Road and Umatilla Trail, which contrast with the industrial presence of the Powerhouse and Fish Viewing Station at the dam site.