mountain lake in the pyrenees with the cavallers dam in the background and high mountains on the sides, vall de boi, lleida, spain

alpine artificial boashy canyon catalonia cavallers climbing cloudy concrete dam freshwater 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