116 6
SEVENTY -FIRST CO NGRESS . SEss . III. CHs . 208, 209. 1931 . Proais oa .
or taken in exchange are located : Provided That the Secretary of Grazing, etc ., lands
y to be designated . the Interior shall, on application or otherwise, designate public lands subject to exchange under this Act which are, in his opinion, chiefly valuable for grazing and raising forage crops, do not con- tain merchantable timber, are not susceptible of irrigation from any known source of water supply, are not embraced in a valid claim, and are of quality similar to the alienated lands offered in Driving stock across. exchange : And pr ovi ded fur ther , That any owner of patented lands in the monument now owning other lands adjoining said monument, which may be separated by the acquisition of land in the monument by the United States under the provisions hereof, shall be, and is hereby, authorized to drive stock across said monu- ment at an accessible location, which may be approved by the Secretary of the Interior, which right shall also accrue to any successor in interest to said adjoining lands, or to any lessee of such lands . Value, title, etc ., of SEc. 2 . That the value of all patented lands within said monu- lands offered .
ment off ered fo r exchan ge, and the val ue of t he lands of the United States to be given in exchange therefor, shall be ascertained in such manner a s the S ecretary of the Interio r may d irect ; and the owners of such alienated lands within said monument shall, before any exchange is effective, furnish the Secretary of the Interior evidence satisfactory to him of title to the patented lands offered in exchange
Added to N ational and lands conveyed to the United States under this Act shall be Monument.
and remain a part of the Chaco Canyon National Monument . University of New SEc. 3 . That in the acquisition on behalf of the United States Mexico, etc.
under authority of law of any of the following-described land, Lands of, may be
y
conveyed with reserva- to wit : Section 13, in township 21 north, range 11 west ; section 17, tion. in township 21 north, range 10 west ; section 21, in township 21 north, range 10 west ; section 3, in township 21 north, range 11 west ; and section 11, in township 21 north, range 11 west, owned by the Univ ersity of New Mexico , the Muse um of New Mexico, and/or the School of American Research, the said Secretary may accept t itle th ereto su bject t o such r eservat ions by the gra ntor or grantors as will enable the said University of New Mexico, the Museum of New Mexico, and/or the School of American Research Useorest °iete a to continue scientific research thereon : Provided, That such use userestr, shall not interfere with the administration of said rea for national- Other lands in ex- monument purposes : And provided further, That upon relinquish- change. ment to the United States of any of the rights reserved by any grantor pursuant hereto the Secretary of the Interior may, in his discretion, grant the right to said University of New Mexico, the Museum of New Mexico, and/or the School of American Research similar rights with reference to other ruins and locations within said monument in lieu thereof . Approved, February 17, 1931 . February 17,1931 . [H. R . 16116.1
CHAP. 2 0 8 .-An Act To ad just the bound aries and for the addition of certain [Public, No. 675.] lands to the Bryce Canyon National Park, Utah, and for other purposes . Be it enacted by the Senate and House o f Representatives o f the Bryce Canyon Na- United States o f America in Congress assembled, That for the tional Park, Utah Boundariesmodif3ed . Purpose of preserving in their natural state the outstanding scenic Po st, n. 3642.
features thereon and for the purpose of rounding out the boundary of the Bryce Canyon National Park, the President of the United States be, and he is hereby, authorized, upon the joint recommenda- Lands ad ded .
tion of the Secret aries of Interior and of Agriculture , to add to said park by Executive proclamation any or all of the following-de-
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