Question: Are Hayden Mountain (Oregon) and Rattlesnake Mountain (Benton County, Washington) both located in the same country?
Sentence (from "Rattlesnake Mountain (Benton County, Washington)"): Parts of the western slope are privately owned ranchland, while the eastern slope is under the federal protection of the Arid Lands Ecology Reserve, a unit of the Hanford Reach National Monument, managed by the United States Fish and Wildlife Service.
Relevant evidence: No