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2023 Map of Lower Monumental Dam

Name: 2023 Topographic Map of Lower Monumental Dam
Creator: U.S. Geological Survey
Published: 2023
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2023

About this map

The Snake River carves a deep path through the plateau of southeastern Washington, marking the boundary between Franklin Co and Walla Walla Co. This landscape is defined by its dramatic coulees and drainages, most notably the winding course of Devils Canyon and the steep walls of Box Canyon. Human settlement is concentrated near the river corridor and the rail line, with small localities such as Matthew, Farrington, and Windust serving as points of reference in a largely rural agricultural and transit-oriented landscape.

Transportation infrastructure is vital to this region, anchored by the Columbia Plateau State Park Trl, which follows the historic path of the Spokane, Portland and Seattle Railway. Aviation access is provided by the Lower Monumental State Airport on the south side of the river. A network of rural roads, including Pasco Kahlotus Road and Wallace Walker Rd, connects the upland farming areas to the river valley, illustrating the enduring relationship between the rugged terrain and the regional economy.