The Grand Canyon, in Arizona, United States, is a steep-sided canyon carved by the Colorado River. The Grand Canyon has a length of 277 miles (446 km), a width of up to 18 miles (29 km) and a depth of over a mile (6,093 feet or 1,857 meters).
The canyon and the adjacent rim are included within the Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. President Theodore Roosevelt was a major advocate of the Grand Canyon region’s preservation and visited it on numerous occasions to hunt and enjoy the landscape.
Today, the Grand Canyon is one of the top US and world attarctions, visited by close to six milllion people every year.