Walla Walla River
Lake Lewis
Lake Lewis backflooded into the Yakima, Walla Walla, Touchet and Tucannon River Valleys.
OpenStreetMap
https://www.openstreetmap.org/relation/6113237
random
geologic period
river in
Umatilla County, Oregon
Oregon
Walla Walla County, Washington
Washington
tags
river
tributary
Touchet River
tributary of
Columbia River
Wikidata
https://www.wikidata.org/wiki/Q3044525
Wikimedia
https://commons.wikimedia.org/wiki/Category:Walla_Walla_River
Wikipedia
https://en.wikipedia.org/wiki/Walla_Walla_River