The Wallowa River is a tributary of the Grande Ronde River, approximately 55 miles long, in northeastern Oregon in the United States. It drains a valley on the Columbia Plateau in the northeast corner of the state north of Wallowa Mountains.
Etymology: A Nez Perce word for a triangle of stakes forming part of a fish trap
Country: United States
State: Oregon
County: Wallowa and Union
Source: Confluence of the east and west forks of the Wallowa River
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