[[file:May2013BulletinCover.jpg|left|thumb|400px|Cliff-forming Wingate Sandstone, as seen from Upheaval Dome Road toward the Holeman Spring Canyon, Canyonlands National Park. Photo by Anita Torabi. Courtesy AAPG Bulletin.]] | [[file:May2013BulletinCover.jpg|left|thumb|400px|Cliff-forming Wingate Sandstone, as seen from Upheaval Dome Road toward the Holeman Spring Canyon, Canyonlands National Park. Photo by Anita Torabi. Courtesy AAPG Bulletin.]] |