In today’s walk, started out along part of the 1815 border (Treaty of Paris), then along a stretch moved in 1897, and finished on a part redefined in 1963, part of the territories exchanged between 🇨🇭🇫🇷 to allow the extension of Geneva airport’s runway. Lines of history, in a couple of hours of a very cold walk. #BorderWalk #geography #walkingMethodology #Borders #BoundaryStudies