The GR 11, also known as the ruta Transpirenaica in Spain, is part of the extensive GR footpath network of paths, tracks and trails. It runs through the Spanish Pyrenees, passing only briefly into France near Candanchu.
From West to East, the trail starts at Cape Higuer (Basque Country), crosses Navarre and Aragon and finishes at Cap de Creus (Catalonia.) Its exact distance is difficult to measure, roughly 840 km and a total elevation change of 39,000 m. The route is separated into 45 sections. At the end of each section there is normally a useful stopping point (camping spot, town, hostel or refuge) but in general, supplies have to be carried for 3–4 days. Because most rivers flow perpendicular to the trail, the GR 11 passes over many valleys affording beautiful vistas but also many ascents and descents - some days as much as 1600 m ascent (with equivalent descent).