162.601—Grants of leases by Secretary.
(4)
The heirs or devisees to individually owned land who have not been able to agree upon a lease during the three-month period immediately following the date on which a lease may be entered into; provided, that the land is not in use by any of the heirs or devisees; and
(b)
The Secretary may grant leases on the individually owned land of an adult Indian whose whereabouts is unknown, on such terms as are necessary to protect and preserve such property.