The
Toxaway River flows south from headwaters in
Transylvania County, North Carolina into
Lake Toxaway and over
Toxaway Falls, after which it crosses into
South Carolina and enters
Lake Jocassee, the reservoir behind Lake Jocassee Dam.
In Lake Jocassee the Toxaway River is joined by the Whitewater River (Keowee River) to form the Keowee River. The confluence is submerged beneath the waters of Lake Jocassee.