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1989 Map of Grand Coulee Dam

Name: 1989 Topographic Map of Grand Coulee Dam
Creator: U.S. Geological Survey
Published: 1989
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1989

About this map

Grand Coulee Dam dominates this 1989 landscape, anchoring a massive infrastructure network where the Columbia River transitions from the impounded waters of Franklin D Roosevelt Lake into Rufus Woods Lake. The map reveals the complex spatial organization required to support this engineering marvel, including the Pumping Station at Crescent Bay and the multi-tiered settlements of Coulee Dam, Grand Coulee, and Elmer City that grew along the riverbanks.

The northern half of the sheet is largely defined by the Colville Indian Reservation, where terrain features like Sand Hill and Hells Canyon rise above Washington Flats. To the south, the topography is carved by deep coulees such as Spring Canyon and Seaton Canyon. This late-century survey captures the region as a primary hub of power generation and recreation, noting infrastructure like the Radio Tower (KEGY) and the Coulee Dam National Recreation Area.