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1985 Map of Olsen Canyon

Name: 1985 Topographic Map of Olsen Canyon
Creator: U.S. Geological Survey
Published: 1985
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1985

About this map

Seven Bays and the rural community of Egypt anchor this mid-1980s topographical study of the eastern shore of the Columbia River. The map details a landscape defined by the expansive waters of Franklin D Roosevelt Lake, where the Coulee Dam National Recreation Area meets the southern boundary of the Colville Indian Reservation. This era shows the developed recreation site at Seven Bays contrasted with the agricultural and open terrain of Swede Flats and Bachelor Prairie.

A network of drainage canyons including Moonshine Canyon, Olsen Canyon, and Snook Canyon cut through the high ground, leading down toward Hawk Creek and other tributaries. These features illustrate the complex hydrology and land use patterns of Lincoln County, where irrigation and proximity to the reservoir shaped local settlement. Genealogists and local historians can trace the relationship between these family-named canyons and the remote settlements that define the region's character.