is the grand canyon the biggest canyon in the world
Canyon The Grand Canyon of northern Arizona in the United States, with an average depth of 1,600 m (one mile) and a volume of 4.17Â trillion cubic metres,[7] is one of the world's largest canyons. It was among the 28 finalists of the New7Wonders of Nature worldwide poll. (Some referred to it as one of the 7 natural wonders of the world.[8]) Copper Canyon in Chihuahua, Mexico is deeper and longer than the Grand Canyon.