10/24/1918
https://www.presidency.ucsb.edu...
"Executive Order No. 1228 of July 13, 1910, temporarily withdrawing the lands for the purpose of classification and pending enactment of legislation within the former Siletz Indian Reservation located ..."
"It is hereby ordered, under authority found in the act of June twenty-one, nineteen hundred and six."
"any use of the land which interferes with its preservation or protection as a National Monument is hereby forbidden."
"Warning is hereby given to all unauthorized persons not to appropriate, injure, remove, or destroy any feature of this National Monument, or to locate or settle on any of the lands reserved by this pr..."