Grand Canyon
colorado Plateau, Arizona, USA
Description:
The Grand Canyon is one of the deepest canyons in the world. It is cut through by the Colorado River in the thickness of sandstones, limestone and shale. These amazing natural phenomena have been occurring for 10 million years.
Now the canyon is included in the UNESCO World Heritage List and is one of the main attractions of the United States. The length of the canyon is 446 kilometers, the width ranges from 6 to 29 kilometers, and the depth reaches 1,600 meters.
On the canyon for convenience built observation decks, a detailed map of the area, observed the absolute purity of the park, so the ability of Americans to protect their natural beauty.
The Grand Canyon is also very well explored by scientists: in it they discovered 4 geological eras of the Earth, many rocks and caves with rich geological, biological and archaeological materials.