2020 Map of Rock Island Dam

About this map

Rock Island Dam anchors this landscape where the Columbia River cuts through the dramatic coulee country of central Washington. The topography is defined by sharp elevation changes, from the river's edge up to Badger Mtn and across the high plateaus of Jumpoff Ridge. The settlement of Voltage sits near the dam, reflecting the industrial development that reshaped the river into the Rock Island Pool. Local geography is etched with numerous deep drainages including Francis Canyon, Moses Coulee, and Lone Pine Canyon. This map details a complex network of orchards and access roads like Columbia View Orchard Rd and Nelson Siding Rd, illustrating the intersection of hydro-electric infrastructure and the region's agricultural footprint. Notable landmarks such as Lone Rock and Rocky Point provide clear reference points for those studying the rugged terrain of the Douglas County and Chelan County borders.