In the world of geography exists The Seven Natural Wonders of the World: The Grand Canyon, Iguazú Falls, Yosemite Valley's giant sequoias, Mount Everest, the harbor of Rio de Janeiro, the Nile River, and the Aurora Borealis. Among these natural wonders, the Grand Canyon is one of the most grandest and beautiful. Appropriately named, the Grand Canyon is so enormous that it can even be seen from space. The Canyon is unmatched throughout the world in the landscapes that it offers to its visitors. Although it not the deepest canyon in the world, the Grand Canyon is known throughout the world for its overwhelming size and its colorful landscape. The park preserves more than 2,700 archaeological sites of Native Americans, who have lived there at least 4,000 years. The Grand Canyon became a National Park in 1919.
             It is not certain exactly how old the Grand Canyon actually is. Although rocks that are exposed in the walls of the canyon are geologically quite old, the Canyon itself is fairly. The oldest rocks at the canyon bottom are close to 2000 million years old. The Canyon itself was an erosional feature, which has only formed in the past five or six million years. So, geologically speaking, the Grand Canyon is considered quite young.
             The size of the Grand Canyon will depend on how you look at it. The entire park is actually 1,218,375.54 acres, or 1,904 square miles, but the most common measurement is a measurement of the canyon in river miles, along the course of the Colorado River at the bottom of the canyon. In that case, the Grand Canyon is 277 miles long. It begins at Lees Ferry and ends at the Grand Wash Cliffs. The Colorado River, which carved the Grand Canyon, is actually 1450 miles long. It extends from the Rocky Mountains to the Gulf of California. The Grand Canyon is only one of many canyons that the river has carved. Cataract Canyon and Glen Canyon are just a couple others, but the Grand Canyon is by ...