The Yadkin River is one of the longest rivers in North Carolina, flowing 215 miles (346 km). It rises in the northwestern portion of the state near the Blue Ridge Parkway's Thunder Hill Overlook. Several parts of the river are impounded by dams for water, power, and flood control. The river becomes the Pee Dee River at the confluence of the Uwharrie River. The river flows into South Carolina near Cheraw, which is at the fall line where it becomes the Great Pee Dee River.