![https://commons.wikimedia.org/wiki/File:49_parallel_waterton.jpg](https://www.futilitycloset.com/wp-content/uploads/2021/06/2021-06-10-the-slash.jpg)
In areas of mountainous terrain and wildnerness, the border between the United States and Canada is kept clear of brush and vegetation to a width of 6 meters, forming a visible line between the nations that’s visible in satellite images.
The deforested segments total more than 2,000 kilometers.