1976—Pub. L. 94–429 struck out designation “(a)” before “grazing of livestock” and struck out subsec. (b) which related to the surface use of the land within the memorial area for prospecting and mining.

Section 3 of Pub. L. 94–429 provided in part that this section was amended as indicated in order to close area to entry and location under the Mining Law of 1872, subject to valid existing rights.