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2011 Map of Coulee City

Name: 2011 Topographic Map of Coulee City
Creator: U.S. Geological Survey
Published: 2011
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2011

About this map

Coulee City sits at the northern end of a dramatic landscape defined by ice-age floods and modern water management. The town’s grid is meticulously detailed with street names from W Main St to Columbia St, situated just south of the massive Banks Lake. To the west, the geological spectacle of Dry Falls and the towering Umatilla Rock mark a prehistoric riverbed, now part of a chain of smaller waters including Dry Falls Lake and Perch Lake.

Modern engineering is prominent through the central and southern portions of the map, where the Bacon Siphon and Bacon Tunnel facilitate water movement across the varied terrain. The map traces the deep gouges of Trail Lake Coulee and Hudson Coulee, leading toward Billy Clapp Lake at the southern margin. This 2011 survey documents the intersection of natural basalt formations and the large-scale irrigation infrastructure that sustains the region, including the Dry Falls Dam and Deep Lake Dam.