Appalachia Reservoir (ap-uh-LAI-chee-uh), Cherokee co., SW N.C., (c.10 mi/16 km long, c.2 mi/3.2 km) in Hiwassee R., 15 mi/24 km WNW of Murphy, at Tenn. state line, formed by Appalachia Dam (TVA completed 1943), 15 mi/24 km WNW of Murphy, for hydroelectric power and flood control.