An X marks a trail or direction that deviates from the GR path. Europe, mostly in France, Belgium, the Netherlands and Spain. Trails are blazed with characteristic marks consisting of a white stripe above a red stripe. These appear regularly along the route, en 573 2 pdf at places like forks or crossroads.
Many GR routes make up part of the longer European walking routes which cross several countries. Red and white was chosen as the most visible colour combination in natural surroundings.
Waymarks are often painted, but may take the form of metal signs in city centers. Saint-Dalmas-Valdeblore Near Nice – Breil-sur-Roya to Gorges de Saorge and Vallon de Zouayne.