How long is the Canadian-US border?
Canada–United States border
The Canada–United States border (), officially known as the International Boundary (), is the longest international border in the world between two countries. It is shared between Canada and the United States, the second- and fourth-largest countries by area, respectively. The terrestrial boundary (including portions of maritime boundaries in the Great Lakes, and on the Atlantic, Pacific, and Arctic coasts) is long, of which is Canada's border with Alaska. Eight Canadian provinces and territories (Yukon, British Columbia, Alberta, Saskatchewan, Manitoba, Ontario, Quebec, and New Brunswick), and thirteen U.S. states (Alaska, Washington, Idaho, Montana, North Dakota, Minnesota, Michigan, Ohio, Pennsylvania, New York, Vermont, New Hampshire, and Maine) are located along the border.
International Avenue Border Crossing
The International Avenue Border Crossing connects the towns of Calais, Maine and St. Stephen, New Brunswick via the International Avenue Bridge on the Canada–US border. The crossing opened on November 16, 2009, and was the first new border crossing to open on the Canada–US border in 42 years. The opening of the crossing marked the first time since 1961 (when the Union Bridge was closed) that there have been three bridges connecting Calais with St. Stephen. Currently, all commercial vehicles crossing between these towns must use this crossing.