; (4) in clause (ii) (as so redesignated), by striking McAllister Ditch and inserting Plainview Ditch ; and (5) by adding at the end the following: (B) Withdrawal Subject to valid existing rights, the Federal land within the boundaries of the river segments designated by subparagraph (A) is withdrawn from all forms of— (i) entry, appropriation, or disposal under the public land laws; (ii) location, entry, and patent under the mining laws