Just after the Washington County park opened its trails in 2009, Terry Richard, former outdoors and travel writer for The Oregonian/OregonLive, not only called Cooper Mountain a “must-do park,” but the “hiking gem” of Washington County. Now, more than a decade later, how does that praise hold up? Find a link to the full story in our bio. Photo by Jamie Hale / The Oregonian | OregonLive #Oregon #hiking #washingtoncounty #CooperMountain