cancel or modify a grazing permit, lease, or contract because the land subject to the permit, lease, or contract has been leased for mineral development. (4) Base properties If non-Federal land conveyed by the State under subsection (b)(1) is used by a grazing permittee or lessee to meet the base property requirements for a Federal grazing permit or lease, the land shall continue to qualify as a base property for— (A) the remaining term of the lease or permit