12/31/1958
https://www.congress.gov...
"It is in the public interest to preserve this area of outstanding scientific, aesthetic, and educational importance for the benefit and enjoyment of the people."
"WARNING is expressly given to all unauthorized persons not to appropriate, injure, destroy, deface, or remove any feature of this monument."
"So I am delighted to be here, Prime Minister, and I am most grateful to the Governor General for his warm welcome."
"I want to express my great pleasure at having an opportunity to talk to you again, and to visit you on your territory which has been the scene on other occasions of most important meetings beneficial ..."