Editorial Notes
Codification
act Feb. 26, 1919, ch. 44, § 6 40 Stat. 1178 Act Jan. 26, 1931, ch. 47, § 1 46 Stat. 1043 Section, , , authorized Secretary of the Interior to permit prospecting, development, and utilization of the mineral resources within Grand Canyon National Park. , , provided that no permit, license, lease for the prospecting, development, or utilization of the mineral resources within the Grand Canyon National Park should be granted after .