U.S.-Canada Border

The U.S.-Canada border is the longest international boundary between two countries, spanning approximately 5,525 miles. It serves as a customs and immigration checkpoint, regulating the movement of people and goods between the two nations. Despite its length, it is generally open for border crossings, with specific ports of entry for travelers and commerce. The border encompasses diverse terrains, including forests, lakes, and urban areas. It is maintained collaboratively by both countries to ensure security, facilitate trade, and support cross-border relationships, while also allowing for peaceful, practical movement across this significant international boundary.