The Cardwell Hills are a mountain range in
Benton County,
Oregon
Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of it ...
.
References
Mountain ranges of Oregon
Landforms of Benton County, Oregon
{{BentonCountyOR-geo-stub