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ANSWER:Yes. Millions of years ago. But what caused the Grand Canyon was the Colorado River, cutting into the soil for a long, long time.
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How far below sea level is the Grand Canyon?

Yes, the Canyon floor is about 2,600 feet above sea level.


What river flows through the Grand Canyon in the US?

The Colorado River passes through the Grand Canyon in the northwest part of Arizona.


What is an undersea canyon?

It is a canyon that is under the sea.A canyon is a place where the ground has eroded into a deep ravine or gully - like the Grand Canyon. The sea is the same as the ocean.


What kind of fossils at the top of the Grand Canyon How did they get there?

There are sea fossils at the top of the canyon from the seas that once covered the low plains there.


How the grand canyon changed?

water went in it and made it under sea level


How far down is the Grand Canyon?

The answer depends largely on where you are along the Canyon...Grand Canyon Village is on the South Rim of the Grand Canyon at an elevation just short of 7,000 feet. The river is about 2,000 feet above sea level, so the depth of the Canyon from Grand Canyon Village is around 5,000 feet. North Rim, near where Grand Canyon Lodge is, is about 1,000 feet higher than South Rim, making North rim to the bottom of the canyon 6,000 feet down.


Was the Grand Canyon once an ocean?

No, the Grand Canyon was not once an ocean. It was formed by the Colorado River cutting through layers of rock over millions of years. The rocks in the Grand Canyon are ancient, with some being over 1.7 billion years old.


What has happened to the mountains that are now at the base of the Grand Canyon to cause them to be at the base of the canyon?

They are roots of extremely old mountains that had eroded significantly before being covered with repeated layers of sedimentation from a now extinct inland sea.


What is the deepist part of the Grand Canyon?

The deepist part is the sea it use to flow ther.


In the grand canyon what is the altitude of the Colorado river?

About 2,600 feet above sea level.


Does the Colorado River still flow through the Grand Canyon?

Yes, it seeks the Sea of Cortez, but little more then a trickle ever reaches it.


What oceans or seas border the grand canyon?

The Grand Canyon contains the Colorado River which eventually flows into Lake Mead. This is a semi-desert area far inland from the nearest ocean or sea. (Pacific Ocean)