American side and by Alberta Highway 6 from the Canadian side, is the only road border crossing within the Waterton-Glacier International Peace Park. It is one of only two on the US-Canada border that are closed in winter (Poker Creek - Little Gold Creek Border Crossing is the other). References Citations Works cited Further reading External links UNESCO World Heritage Site Entry Glacier National Park (U.S.) History of the Rocky Mountains Parks in Alberta Peace parks Transboundary protected areas Waterton Lakes National Park World Heritage Sites in the United States World Heritage Sites in Canada 1932 establishments in Montana 1932 establishments in Alberta Protected areas established in 1932