Title 25 › Chapter 12— LEASE, SALE, OR SURRENDER OF ALLOTTED OR UNALLOTTED LANDS › § 399
Allows the Secretary of the Interior to lease parts of unallotted land inside Indian reservations in these states—Arizona, California, Idaho, Montana, Nevada, New Mexico, Oregon, Washington, and Wyoming—if the land was withdrawn from mining entry before June 30, 1919. The leases are for mining gold, silver, copper, other metalliferous minerals, and nonmetalliferous minerals (not oil or gas). The Secretary can first declare areas open for exploration, and then people may locate mining claims. The person who locates a claim (or their heirs or assigns) has one year from the claim date to apply for a lease or they lose the claim. A copy of the location notice must be filed with the reservation superintendent within 60 days. Lands with springs or other water used by Indians cannot be opened for claims. Leases last 20 years and can be renewed for 10-year terms under rules the Secretary sets. The lessee may give up the lease in writing and be released from future obligations if the Secretary accepts it. Lessees must pay a royalty of at least 5% of the net value of what they mine, due monthly after extraction, plus yearly rental fees that start at not less than $0.25 per acre for the first year, $0.50 per acre for years two through five, and $1 per acre after that; rental counts toward royalties that year. Lessees must spend at least $100 a year on development work for each claim and must pay for any damage their mining causes to Indian land or crops. They may use up to 40 acres for camps or mills at no less than $1 per acre per year. Timber may be cut only for mining, with a permit and payment. The Secretary may reserve or lease surface rights, review lessees’ books, require sworn reports, and cancel leases in court for breaches after notice. Royalties and rentals go into the U.S. Treasury for the benefit of the Indians on that reservation and are managed under laws or treaties that apply. "Metalliferous" is defined to include magnesite, gypsum, limestone, and asbestos.
Full Legal Text
Indians — Source: USLM XML via OLRC
Legislative History
Reference
Citation
25 U.S.C. § 399
Title 25 — Indians
Last Updated
Apr 5, 2026
Release point: 119-73not60