The Little Pee Dee River is a 116-mile-long (187 km) tributary of the Pee Dee River (which originates in the Appalachian Mountains where it is known as the Yadkin River). The Little Pee Dee technically arises near Laurinburg, North Carolina as Gum Swamp, which flows southward, receiving several small tributaries, across the South Carolina border into Red Bluff Lake, near McColl, South Carolina. The lake is at an elevation of 135 feet (41 m) above sea level, and from the outlet of the lake, the flow is called the Little Pee Dee River. The Little Pee Dee River is named after the Pee Dee Indian Tribe. In fact, today the tribe still occupies some of their ancestral lands, although the tribe only consists of just over 200 enrolled members.