Riley, Oregon is an unincorporated small town in Harney County, Oregon, United States, located at the crossroads of U.S. Highway 395 and U.S. Highway 20, milepost 104, about 28 miles (45 km) west of Burns, the seat of Harney County. The elevation of Riley is 4,226 feet (1,288 m). The town presently consists entirely of two service establishments with attached apartments: a post office, and a general store with gas pump and garage service.