The Grand Canyon in Arizona was created by the Colorado River. It is located in the Grand Canyon National Park, one of the first national parks in America. President Theodore Roosevelt wanted to preserve the Grand Canyon area, which he visited many times and enjoyed in its beautiful nature while he was hunting.
Grand Canyon is 277 miles long and wide from 4 up to 18 miles. In some places it reaches a depth of 1.1 miles. Scientists are still in a debate on how long did it take for the canyon to form. They presume that it is at least 17 million years old. From that time, the River Colorado keeps changing the form of the canyon. It is still going on today.
Before the European migration, the area was inhabited by American Indians who built villages along the canyon. Supposedly, the first European who saw the Grand Canyon was the Spaniard García López de Kardenas. He got there in 1540.
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