16 U.S.C. § 161a — Part of Waterton-Glacier International Peace Park

This section lets Glacier National Park join with a Canadian park to form one international park. The purpose is to permanently commemorate the long-existing relationship of peace and good will between the peoples and governments of Canada and the United States. Two things must happen first. First, the proper Canadian authority must enact a similar provision respecting Waterton Lakes National Park, in the Province of Alberta. Second, the President of the United States — who is authorized to do this — must issue a proclamation. Once both of these happen, Glacier National Park in the State of Montana becomes part of a combined international park, to be known as the Waterton-Glacier International Peace Park.