How Were the Rocky Mountains Formed?

Answer

The Rocky Mountains were formed when forces under the earth's crust (tectonic plates) were pushing against each other forcing the land to move upward. This happened millions of years ago.
Q&A Related to "How Were the Rocky Mountains Formed?"
The rocky mountains are a bit of an anomaly. They are not at a plate boundary like most ranges around the world. The current theory is that the Farallon plate subducted shallowly
http://wiki.answers.com/Q/How_was_the_Rockie_Mount...
The Rockies were formed mainly by crustal uplifts, during the late Cretaceous
http://www.chacha.com/question/how-were-the-rocky-...
They were formed between 100 million years ago and 50 million years ago, when the Farallion Plate subducted beneath the North American Plate. The collisi0on of these two plates caused
http://answers.yahoo.com/question/index?qid=201008...
Taconic Orogeny The Taconic Orogeny (mountain building) in the Ordovician Age (430 million years ago) was the first of three plate collisions on the east coast of North America. The
http://www.ehow.com/how_5521767_pocono-mountains-w...
1 Additional Answer
The Rocky Mountains were formed when the large plates that form the surface of the earth moved around and collided with each other. It is thought that this occurred over 120 million years ago. The plates are moving still, albeit very slowly. You can find more information here: http://www.mountainnature.com/geology/platetectonics.htm
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