Jimmy Carter, Proclamation 4615 (1978)
“ Section 2 of the Act of June 8, 1906 (34 Stat. 225, 16 U.S.C. 431) , authorizes the President, in his discretion, to declare by public proclamation historic landmarks, historic and prehistoric structures, and other objects of historic or scientific interest that are situated upon the lands owned or controlled by the Government of the United States to be national monuments, and to reserve as part thereof parcels of land, the limits of which in all cases shall be confined to the smallest area compatible with the proper care and management of the objects to be protected. ”
