; (ii) designate each road or trail available for— (I) motorized or mechanized recreation; or (II) agriculture practices; (iii) prohibit the construction of any new road or trail for motorized or mechanized recreation use; and (iv) permit the continued use of nonmotorized trails. (4) Motorized vehicles (A) Use of motorized vehicles for livestock The use of motorized vehicles shall be allowed on any road in the Special Management Area for— (i) the construction, reconstruction, or maintenance of range improvements; or (ii) other livestock-management purposes. (B) Use of motorized vehicles for emergencies The use of motorized vehicles shall be allowed in the Special Management Area— (i) for fire suppression; (ii) for weed and pest management; and (iii) to respond to an emergency. (5) Grazing Grazing of livestock in the Special Management Area shall be administered— (A) as a nondiscretionary use; and (B) in accordance with the laws generally applicable to land under the jurisdiction of the Bureau. (6) Withdrawal (A) In general Except as provided in subparagraph (B), subject to valid rights in existence on the date of enactment of this Act, the land within the boundaries of the Special Management Area is withdrawn from— (i) location, entry, and patent under the mining laws; and (ii) disposition under all laws relating to mineral and geothermal leasing. (B) Exception The Secretary of the Interior may lease oil and gas resources within the boundaries of the Special Management Area if— (i) the lease may only be accessed by directional drilling from a lease that is outside of the Special Management Area