dry salt hills in valle de la luna, moon valley in san pedro de atacama desert

altiplano altitude america andean andes area arid atacama background barren beauty chile chilean cliff climate clouds cordilleras desert driest dry dune earth ecotourism empty erosion extreme flat formation geology high hill landmark landscape latin luna majestic moon mountain national nature nobody oasis outdoor panorama panoramic pedro red region road rock rocks salt san sand sanpedro sky soil south stone terrain tourism travel valle valley view volcano wild wilderness world