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450 million years ago

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11y ago
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Q: Rocky Mountains were underwater how many years ago?
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Related questions

How many Rocky Mountains are there?

to many to count


How are the Appalachian Mountains similar and different from the Rocky Mountains?

The Rocky Mountains are taller than Appalachian Mountains and has sharp pointy peaks. The Rocky Mountains are taller.They Both have eroded. The Appalachian Mountains are older and shorter than rocky mountains.


How many mountains did Lewis and clark climb in the rocky mountains?

he climbed 8 mountains


What group of mountains are the source of many rivers in the west?

The rocky mountains are the greatest source of rivers in the west. The rocky mountains form the continental divide.


About how many miles separate the rocky mountains from the Appalachian mountains at their closest point?

about how many miles seperate the appalachian mountains from the rocky mountains at their closest point?


How many acres is the rocky mountains?

The Rocky Mountain's area is 8,256 acres.


How many square miles do the Rocky Mountains cover?

The Rocky Mountains cover an area of approximately 382,894 sq miles (991,691 km²).


How many plants live on the Rocky Mountains?

millions of plants


Is Romania's land rocky?

Yes, Romania has many mountains.


What state that borders Kansas has many high mountains?

Colorado borders Kansas to the West ... and contains portions of the Rocky Mountain range.Colorado and the Rocky Mountains.


Which people climbed the Rocky Mountain?

The Rocky Mountains are a range of mountains in the western United States, not a single mountain. Many people (amateurs and pros alike) climb them.


How many miles is it from Sacramento to the rocky mountains?

roughly 850 miles