Grand Canyon, 1873 According to the History, the Grand Canyon | OLD BROTHER SHELTER
Grand Canyon, 1873
According to the History, the Grand Canyon was formed when the Colorado River began cutting a channel through layers of rock 5 to 6 million years ago. Since the last Ice Age, about 2.6 million years ago, humans have inhabited the area within the canyon and around it. President Benjamin Harrison declared the Grand Canyon a forest reserve in 1893, granting the canyon its first federal protection.
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