Question: What 147 mile long river is dammed by the Apalachia Dam?
Sentence (from "Hiwassee River"): The Hiwassee River has its headwaters on the north slope of Rocky Mountain in Towns County in northern Georgia and flows northward into North Carolina before turning westward into Tennessee, flowing into the Tennessee River a few miles west of State Route 58 in Meigs County, Tennessee.
Relevant evidence: Yes