43 U.S. Code § 315e - Rights of way; development of mineral resources
Nothing contained in this subchapter shall restrict the acquisition, granting or use of permits or rights of way within grazing districts under existing law; or ingress or egress over the public lands in such districts for all proper and lawful purposes; and nothing contained in this subchapter shall restrict prospecting, locating, developing, mining, entering, leasing, or patenting the mineral resources of such districts under law applicable thereto.
Source(June 28, 1934, ch. 865, § 6,48 Stat. 1272.)