CFR > Title 25 - Indians > CHAPTER I—BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR > SUBCHAPTER I—ENERGY AND MINERALS (parts 200 to 227) > PART 215—LEAD AND ZINC MINING OPERATIONS AND LEASES, QUAPAW AGENCY > 215.23a—Suspension of operations and production on leases for minerals other than oil and gas.