08/04/1977
https://www.presidency.ucsb.edu...
"I think they recognize the difficulty of it."
"The area reserved consists of approximately 350,000 acres, and is the smallest area compatible with the proper care and management of the objects to be protected."
"Now, Therefore, I, Jimmy Carter, President of the United States of America, by the authority vested in me... do proclaim that there are hereby set apart and reserved as the Kobuk Valley National Monum..."
"The area reserved consists of approximately 560,000 acres, and is the smallest area compatible with the proper care and management of the objects to be protected."