The Pont d'Espia - Coll del Boix is a 16.7 kilometer climb. This is a category 1 climb. It is located in Coll de Nargó, Catalonia. The average gradient of this climb is 4.3%. The Pont d'Espia - Coll del Boix climbs from 531 meters at the start to 1,257 meters at the summit, with a total of 726 meters of elevation gain.