Complex sentence: They became known as the Chicamaugas, and eventually moved farther down the Tennessee River below The Suck to the other end of the Tennessee River Gorge and built the "Five Lower Towns" at Running Water and further downriver.
Split into simpler sentences: They became known as the "Chickamaugas", and eventually moved farther down the Tennessee River below The Suck; to the other end of the Tennessee River Gorge. There they built the "Five Lower Towns" at Running Water and further downriver.