16 U.S.C. § 422b : US Code - Section 422B: Duties of Secretary of the Interior

      The affairs of the Moores Creek National Battlefield shall be
    subject to the supervision and direction of the Secretary of the
    Interior, and it shall be the duty of the Interior Department,
    under the direction of the Secretary of the Interior, to open or
    repair such roads as may be necessary to the purposes of the
    battlefield, and to ascertain and mark with historical tablets or
    otherwise, as the Secretary of the Interior may determine, all
    lines of battle of the troops engaged in the Battle of Moores
    Creek, and other historical points of interest pertaining to the
    battle within the battlefield or its vicinity; and the Secretary of
    the Interior in establishing this battlefield is authorized to
    employ such labor and services and to obtain such supplies and
    material as may be considered best for the interest of the
    Government, and the Secretary of the Interior shall make and
    enforce all needed regulations for the care of the battlefield.