Grand Canyon Park celebrates its 100 anniversary: an impressive PHOTO
The Grand Canyon National Park in Arizona marks this year a hundred years since its foundation.
The canyon itself - one of the most impressive on Earth - began to form 75 million years ago. The length of the Grand Canyon is 445 kilometers, the depth at its lowest point is 1,8 kilometers. Today it is one of the most popular parks in the United States - about 6 million tourists visit it annually, writes “Voice of America".
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The canyon is cut by the Colorado River in thickness of limestone, shale and sandstone. Canyon length - 446 km. The width (at plateau level) ranges from 6 to 29 km, at the bottom level - less than a kilometer. Depth to 1800 m.
The Grand Canyon National Park is one of the oldest national parks USA. Located on its territory The Grand Canyon River Colorado - one of the recognized natural wonders of the world. The area of the park is 4 square km.
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The southern edge of the canyon is the most visited, here are the most popular survey points. The northern edge of the canyon is much less visited. The remaining parts of the canyon are remote and inaccessible, although many of them are accessible by pedestrian routes and country roads.
The area around the Grand Canyon became a national monument of 11 in January 1908 of the year and was declared a national park of 19 in February of 1919 of the year. The creation of the park was one of the first successes of the environmental movement. The status of the national park could prevent the execution of plans to build a dam on the Colorado River within the park. Later UNESCO declared park object World Heritage.
The Grand Canyon, including its extensive system of adjacent canyons, is neither the largest nor the deepest in the world, but it is valued primarily for its harmonious combination of size, depth and multicolor layers of exposed rock that date back to Precambrian of times.
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