Rio Grande in Boquillas Canyon Rio Grande in Boquillas CanyonThumbnailsSand dune alongside trailRio Grande in Boquillas CanyonThumbnailsSand dune alongside trailRio Grande in Boquillas CanyonThumbnailsSand dune alongside trailRio Grande in Boquillas CanyonThumbnailsSand dune alongside trailRio Grande in Boquillas CanyonThumbnailsSand dune alongside trailRio Grande in Boquillas CanyonThumbnailsSand dune alongside trailRio Grande in Boquillas CanyonThumbnailsSand dune alongside trail