The Vertical de l'Arp concludes high in the Catalan Pyrenees, with the primary vertical-kilometer route ascending to the Refugi de l'Arp at 1,937 meters. It begins in Sorribes de la Vansa, Lleida, Spain, and is a brief, steep mountain event, not an extended trail race. The stated trail distance is 6.9 km, and the event provides both running and hiking choices, including a non-competitive march.
The course ascends from the village towards the Tuixent-La Vansa Nordic ski area, gaining elevation rapidly through pine, oak, and fir forest. Certain segments are steep enough that pacing is more critical than outright speed. The senderista option covers 1,000 meters of positive elevation gain, while the vertical mile reaches higher, up to Pedro dels Quatre Batlles at 2,387 meters. It attracts trail runners seeking a straightforward uphill challenge and hikers desiring the same mountain path without the competitive aspect.