The Grand Canyon is a colorful steep-sided gorge carved by the Colorado River in the U.S. state of Arizona. It is largely contained within the Grand Canyon National Park — one of the first national parks in the United States. President Theodore Roosevelt was a major proponent of conservation of the Grand Canyon area, and visited on numerous occasions to hunt and enjoy the scenery.
The canyon, created by the Colorado River over 6 million years, is 277 miles (446 km) long, ranges in width from 4 to 18 miles (6.4 to 24 kilometers), and attains a depth of more than a mile (1.6 km). Nearly two billion years of the Earth's history have been exposed as the Colorado River and its tributaries cut their channels through layer after layer of rock while the Colorado Plateau was uplifted.
During prehistory, the area was inhabited by Native Americans who built settlements within the canyon and its many caves. The first European known to have viewed the Grand Canyon was García López de Cárdenas from Spain, who arrived in 1540.The Grand Canyon is a massive — in places over a mile (1,609 m) deep — 277 miles (446 km) long rift in the Colorado Plateau that exposes uplifted Proterozoic and Paleozoic strata. The Grand Canyon is unmatched throughout the world for the vistas it offers to visitors on the rim. It is not the deepest canyon in the world — both the Barranca del Cobre in Northern Mexico and Hell's Canyon on the Oregon-Idaho border are deeper — but Grand Canyon is known for its overwhelming size and its intricate and colorful landscape. Geologically it is significant because of the thick sequence of ancient rocks that are beautifully preserved and exposed in the walls of the canyon. These rock layers record much of the early geologic history of the North American continent. Grand Canyon is also one of the most spectacular examples of natural erosion in the world....(more on www.wikipedia.org)
1. Horseshoe Bedn near Page, Arizona
2. Havasupai Mooni Falls, Grand Canyon, Arizona
3. Dreamland, Havasu Falls, Grand Canyon, Arizona
4. Toroweap Point, Grand Canyon National Park, Arizona
5. The Gathering Storm, Grand Canyon
6. The South Rim at Sunset, Grand Cany
7. The Isis Temple at Sunset, Grand Canyon