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2017 Map of Grand Coulee Dam

Name: 2017 Topographic Map of Grand Coulee Dam
Creator: U.S. Geological Survey
Published: 2017
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2017

About this map

The Grand Coulee Dam dominates this geography, anchoring the massive impoundment of the Columbia River to form Franklin D Roosevelt Lake. This modern survey illustrates the complex intersection of the dam's infrastructure with the neighboring communities of Coulee Dam, Grand Coulee, and Mason City. The surrounding landscape is characterized by high plateau features like Washington Flats and Sand Hill, while the reservoir's shoreline creates recreational landmarks within the Lake Roosevelt National Recreation Area, including Gibbs Bay and Crescent Bay.

Residential expansion is mapped through settlements like Elmer City and Lone Pine, positioned along the river's northern reach. The topographic detail follows the steep descent of canyons such as Hells Canyon, Spring Canyon, and Seaton Canyon as they drop toward the waterway. This record provides a clear view of the mid-2010s road network and land divisions where Douglas, Okanogan, Grant, and Lincoln counties converge at the river's edge.