How long ago did the grand canyon formed?

Answer 1

The Grand Canyon was formed about 5.4 million years ago.
There is no exact understanding of when it was formed, although geologists have an understanding that it is thousands of years old, based on the layers of rock seen because of erosion.

Answer 2

The rocks that are now seen at the bottom of The Canyon are about two billion years old. However, for most of the time since then, this schist has been buried under under 1000s of meters of other rocks. Indeed, if you had visited the area that is now the Grand Canyon about ten million years ago, you'd have found nothing of particular interest. It has only been in the last in the last five to six million years that any canyon has existed here.

Answer 3

About 17 million years ago.

Actually the Grand Canyon was built 2 billion years ago!

Answer 4

The grand canyon was never built. It formed naturally over millions of years.

Answer 5

It was established in 1919