16 U.S.C. § 2
Section, act Aug. 25, 1916, ch. 408, §2, 39 Stat. 535; Mar. 4, 1921, ch. 161, §1, 41 Stat. 1407, related to national parks, reservations, and monuments; supervision. See section 100302(a)(3) of Title 54, National Park Service and Related Programs.