25 U.S.C. § 397 : US Code - Section 397: Leases of lands for grazing or mining

Search 25 U.S.C. § 397 : US Code - Section 397: Leases of lands for grazing or mining

Where lands are occupied by Indians who have bought and paid for
the same, and which lands are not needed for farming or
agricultural purposes, and are not desired for individual
allotments, the same may be leased by authority of the council
speaking for such Indians, for a period not to exceed five years
for grazing, or ten years for mining purposes in such quantities
and upon such terms and conditions as the agent in charge of such
reservation may recommend, subject to the approval of the Secretary
of the Interior.