Eastern Oregon is the eastern part of the U.S. state of Oregon. It is not an officially recognized geographic entity, thus the boundaries of the region vary according to context. It is sometimes understood to include only the eight easternmost counties in the state; in other contexts, it includes the entire area east of the Cascade Range. Cities in the broadest definition include Baker City, Bend, Burns, John Day, Klamath Falls, La Grande, Ontario, Pendleton, and The Dalles.