Washtucna anchors the southern edge of this landscape, where the town's street grid meets the dramatic geologic formations of the Channeled Scablands. The area is defined by a series of prominent coulees, including Collier Coulee, Staley Coulee, and the expansive Washtucna Coulee to the south. These deep, dry canyons reflect the powerful glacial floods of the region's distant past, now hosting modern agricultural operations and transportation routes.
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1923 · Washtucna
USGS Topo · 1:62,500
1925 · Washtucna
USGS Topo · 1:62,500
1948 · Starbuck
USGS Topo · 1:62,500
1948 · Ayer
USGS Topo · 1:62,500
1950 · Starbuck
USGS Topo · 1:62,500
1950 · Haas
USGS Topo · 1:62,500
1950 · Benge
USGS Topo · 1:62,500
1952 · Benge
USGS Topo · 1:62,500
1953 · Walla Walla
USGS Topo · 1:250,000
1958 · Walla Walla
USGS Topo · 1:250,000