Example image of eyePlorer eyePlorer map for 'Canada – United States border': Border United States Alaska Arctic Ocean Atlantic Ocean Great Lakes Pacific Ocean List of countries by number of neighbouring countries List of land border lengths Kingdom of Great Britain Treaty of Paris (1783) Canada – United States border Jay Treaty 49th parallel north Lake of the Woods Northwest Angle Rocky Mountains Treaty of 1818 Red River Valley Rupert's Land Louisiana Purchase Milk River (Alberta–Montana) Missouri River Aroostook War Boundary Waters Lake Superior Maine Minnesota New Brunswick Ontario Province of Canada Webster–Ashburton Treaty Columbia River James K. Polk Latitude Oregon boundary dispute Russia United Kingdom of Great Britain and Ireland Oregon Treaty Pig War San Juan Islands 141st meridian west Alaska boundary dispute Buoy Mexico – United States border Saint Lawrence River Akwesasne Classified information United States Border Patrol September 11 attacks