The east half east half section 25, township 36 south, range 4 west; the east half and southwest quarter section 20, and all of sections 21, 29, and 30, township 36 south, range 3 west; all of sections 24 and 25, township 37 south, range 4 west; and all of sections 19 and 30, township 37 south, range 3 west, Salt Lake meridian, are excluded from the Powell National Forest and made a part of the Bryce Canyon National Park, subject to the provisions of sections 346, 401, and 402 of this title.