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A valley can become a canyon by rivers and rocks.
The last scout spotted the goat only after he descried the canyon for a time.
1971
earthquake
Yes, the wind and water have caused the grand canyon to become what it is today.
Grand Canyon National Park was established on February 26, 1919.
Why does no one ever answer this
It was incorporated in 1987. Before that it was a mix of several other communities. Saugus, Newhall, Canyon Country and Valencia.
The largeness of the Grand Canyon was an inscrutablecalculus problem never to be solved
To protect it for use by future generations.
Grand Canyon National Park became a World Heritage Site in 1979.
Because there is cool stuff to visit.