1939 reproduction map of Glacier National Park and Waterton International Peace Park by the Great Northern Railway Co. This map includes illustrations of some attractions and wildlife. Yellow lines show paved roadways and the red lines highlight the park’s trail network. The Waterton-Glacier International Peace Park is the union of Waterton Lakes National Park in Canada and Glacier National Park in the United States. It is the world’s first “international peace park” and both parks are declared Biosphere Reserves by UNESCO.