Malheur National Forest spans more than 1.4 million acres in eastern Oregon’s Blue Mountains, with terrain ranging from high desert grasslands and sage country to juniper, pine, and fir forests. Established on June 13, 1908, by President Theodore Roosevelt and named for the Malheur River, it includes the east-west Strawberry Mountains, rises to 9,038 feet at Strawberry Mountain, and contains two federally designated wilderness areas. Managed for timber, grazing, mining, and recreation, it also holds extensive old growth and the “Humongous Fungus,” an Armillaria ostoyae covering about 2,200 acres, the largest known organism in the Northern Hemisphere by area.