The Canada–United States border officially known as the International Boundary, is the longest international border in the world between two countries. Eight Canadian provinces and territories and thirteen US states are located along the border.
At one point the border between
Canada on the north and the US runs through the villages of
Derby Line, Vermont, and Stanstead, Quebec - and though the
middle of the town library.
It physically snakes through side streets, in and out of houses,
through the public library, and straight down the middle of a
main road that residents affectionately call “Canusa Avenue." An
apartment building in town has two addresses, one for each
Incidentally, Canada borders are east, west, north, and south
of the US. In Alaska, Canada is directly East. In many
northern US continental states, Canada is directly North. In
Maine, it is directly West and North. In Detroit, Michigan,
Canada is directly South. Part of Washington State is both
North and South of Canada. See my blog LINK