The specific geologic processes and timing that formed the Grand Canyon spark lively debates by geologists. The general scientific consensus, updated at a 2010 conference, holds that the Colorado River carved the Grand Canyon beginning 5 million to 6 million years ago.
Likewise, people ask, how many years did it take to carve out the Grand Canyon?
Around 6 million years ago, the eastern and western portions of the Grand Canyon connected, allowing the Colorado to flow all the way through, eventually carving out the 277-mile (446-kilometer) long and 1-mile (1.6-kilometer) deep canyon that exists today.
When did the Grand Canyon begin to form?
How old is the Grand Canyon?
It's young! It's really, really old! It's not as old as you think! But now a paper in Nature Geoscience offers a possible compromise: Yes, the Colorado River has been carving the Grand Canyon for only 6 million years, but it is flowing through canyons that date back about 70 million years.