The Grand Canyon is a very colorful, steep-sided gorge, carved by
the Colorado River, in northern Arizona, USA. It is largely contained
within the Grand Canyon National Park — one of the first national
parks in the United States. President Theodore Roosevelt was a major
proponent of the Grand Canyon area, visiting on numerous occasions
to hunt mountain lions and enjoy the scenery.The Grand Canyon is
a very deep - in places over a mile deep - 277 mile (446 km)More
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