the state of Vermont and the province of Quebec and the state of New York and the province of Quebec before any requirement for the commission's permission existed. Some of these still stand. The most well known is the Haskell Free Library and Opera House, intentionally located astride the boundary. The International Peace Garden, built in 1932 on the boundary between Manitoba and North Dakota, required authorization from the commission. See also Boundary Commission Trail References External links Canada–United States border 1908 establishments in North America Intergovernmental organizations established by treaty Boundary commissions