panoramic view of the cavallers reservoir surrounded by high mountains, river noguera de tor in ribagorza, boí valley, pyrenees

alpine artificial blue boashy canyon catalonia cavallers climbing cloudy cold concrete dam green high hike lake landscape lerida lleida mountain mountainous national natural nature nobody outdoors panorama panoramic park peaceful peak pyrenees reservoir resource ribagorza river scenery serenity spain spanish summer taull trail travel trek trekking vacation view water