Flash floods in Southwest USA deserts have carved slot canyons into Navajo Sandstone creating astoundingly beautiful natural rock cathedrals. Drive to Antelope Canyon Navajo Tribal Park east of Page on Highway 98 between mileposts 298 and 299 in Arizona, USA. Turn south to Upper Antelope Canyon toll booth and parking lot, which has a 4WD shuttle and guide to reach the slot entrance. Or turn north on Antelope Point Road (Navaho Route N22B) to Lower Antelope Canyon (or "the Corkscrew") parking lot.