Home›Landforms of Washington County, Oregon›Cooper Mountain🌐EnglishEnglishNederlandsEntityQ5167795· pop 5· linked from 9 articlesCooper Mountainmountain in Oregon, United States of AmericaWikidata factsImageCooper Mountain Nature Park south slope of Cooper Mountain.JPGvia Wikidata · CC0On the mapAvailable in 5 languagesCebuanoEgyptian ArabiclldUrduvia Wikidata sitelinks · CC0ConnectionsUnited StatesCountryOhioEntityCategoriesLandforms of Washington County, OregonMountains of Oregon