Four Hole Swamp South Carolina

    Four Hole Swamp is a small blackwater river that is a tributary to the Edisto River in South Carolina. The swamp rises in Calhoun County and flows 62 miles to the confluence. The river is noteworthy for its unusual braided pattern; it has no well-defined channel but instead has multiple channels that start and disappear, maintaining a flow.
    Data from: Wikipedia · Freebase