Explore hiking trails around Trouillas, Languedoc-Roussillon. The best hike near Trouillas is Collada del Pla de l'Arca via Camí de Requesens al Pla de l'Arca, a 13.6 mile oneway in Alta Garrotxa-Massís de les Salines. Trouillas has population 2257.0.