25 U.S.C. § 350 : US Code - Section 350: Surrender of patent, and selection of other land

Search 25 U.S.C. § 350 : US Code - Section 350: Surrender of patent, and selection of other land

The Secretary of the Interior is authorized, in his discretion,
and whenever for good and sufficient reason he shall consider it to
be for the best interest of the Indians, in making allotments under
the act of February 8, 1887, to permit any Indian to whom a patent
has been issued for land on the reservation to which such Indian
belongs, under treaty or existing law, to surrender such patent
with formal relinquishment by such Indian to the United States of
all his or her right, title, and interest in the land conveyed
thereby, properly indorsed thereon, and to cancel such surrendered
patent: Provided, That the Indian so surrendering the same shall
make a selection, in lieu thereof, of other land and receive patent
therefor, under the provisions of the act of February 8, 1887.