The Tugaloo River (originally Tugalo River) is a 45.9-mile-long (73.9 km) river that forms part of the border between the U.S. states of Georgia and South Carolina.It is fed by the Tallulah River and the Chattooga River, which each form an arm of Lake Tugalo, on the edge of Georgia’s Tallulah Gorge State Park. The Tugaloo flows out of the lake via Tugaloo Dam, passing into Lake Yonah and through Yonah Dam. The river ends as an arm of Lake Hartwell, as does South Carolina’s Seneca River which is formed by the confluence of the Keowee River and Twelvemile Creek.
Below Lake Hartwell, it is called the Savannah River.
