U.S.-Canada border
World's longest frontier
The U.S.-Canada border is the boundary line between the United States and Canada, stretching nearly 5,500 miles across the continent.
Often called the world's longest undefended border, it runs through forests, lakes, prairies, and mountain ranges.
We crossed the U.S.-Canada border at Niagara Falls.
- Great LakesFive connected inland seas
- NAFTAContinental free-commerce bloc
- dual citizenshipHolding two nationalities simultaneously
- Rocky MountainsWestern North American cordillera
- asylum seekersPeople requesting safe haven
duty-free shop · USMCA · free trade zone · indigenous communities · Treaty of Ghent · visa requirements · Niagara Falls · passport control · War of 1812 · biometric screening · St. Lawrence River · Thousand Islands · customs duties · tourism hotspots · Lake Superior · Pacific Northwest · maple syrup · Arctic Circle
U.S.-Canada borderKorean DMZ
Armistice separation zone
U.S.-Mexico border · Berlin Wall · Iron Curtain · conflict zone · war front
U.S.-Canada borderBerlin Wall
Cold War partition
Iron Curtain · closed border · border wall · no-go zone · restricted zone
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