Topoguide de poche (en anglais) de l'éditeur Cicerone avec des fiches détaillées pour randonner sur le GR1 dans le nord de l'Espagne. Description fournie par l'éditeur :Guidebook to the 1250 km of Spain's Sendero Historico (GR1), traversing northern Spain from Puerto de Tarna in the province of Leon in the west to the Mediterranean near L'Escala in Catalonia, through fascinating, varied landscapes and the foothills of the Pyrenees. Described in 53 stages, about 25 km each in length, with detailed mapping. Seasons : Potentially accessible throughout the year but best experienced from April to early June and in September and October. Centres : Reinosa, Vitoria, Olite, Murillo de Gállego, Graus and Gironella. Difficulty : Quiet and often remote providing a wide range of walking experiences none of which requires technical expertise; accommodation can usually be found on the route and at the end of a 7 to 8-hour walking day. Must See : Combines visits to many of the most important sites in the country's historical development with some its best scenery.