The border between the United States and Canada is one of the longest in the world, stretching from the Atlantic Ocean in the east to the Pacific Ocean in the west. Unlike the border with Mexico, it is not marked by a wall or fence, but traverses varied landscapes that include mountains, forests, rivers, and lakes, such as the Niagara River and Rainy Lake.
Along its nearly 8,891 kilometers in length, the border features 111 land crossing points where customs and immigration checks are conducted. One of the highlights of this border is the Haskell Library, built on the dividing line. In this building, the main entrance is in the United States, while the shelves and reading room are in Canada, allowing visitors to cross from one country to another without leaving the building.
Another emblematic building is the Haskell Opera House, also located on the border, with its stage in Canada and most of the seating in U.S. territory. This peculiarity is due to historical agreements that have defined the border over time, involving the United States, Canada, the United Kingdom, and Russia in negotiations to establish it, with the installation of about 8,000 markers that indicate its limits.
The strip that divides the United States from Canada is characterized by its trees, vegetation, and visible markers that indicate the dividing line. Despite the absence of a physical wall along the entire border, controls are maintained through electronic surveillance, patrols, and checkpoints to monitor the crossing of people and goods.
The relationship between the two countries has been one of cooperation and friendship over the years, unlike the tensions that have arisen at the southern border of the United States. However, recently, immigration and security policies of the Trump administration have generated debate and concerns in this border region.