shafer canyon switchbacks

arch arches arid boulder canyon canyonlands cliff cliffs colorado danger dangerous desert desolate dry eroded erosion forces formation formations geologic geological geology high hike hiking hoodoo island landmark landscape majestic mesa moab monument mountains national natural nature outdoor panorama panoramic park peaceful plateau precarious red remote river road rock rocks rocky sand sandstone scene scenery scenic shafer slick slickrock southwest southwestern stone switchback switchbacks towers trail unnerving usa utah valley view viewpoint vista west western wilderness winding