The Rocky Mountains (often 'The Rockies') are a range of mountains in the western United States and Canada. They stretch from the northernmost part of British Columbia, in western Canada, to New Mexico, in the southwestern United States. The Rocky Mountains are more than 3,000 miles long (4,800 kilometers). The highest point in the Rocky Mountains is Mt. Elbert. Mt. Elbert is 14,433 ft tall.
The Rocky Mountains were formed from 80 million to 55 million years ago (mya) during the Laramide orogeny. North America began to move westwards as Pangaea broke up. A number of tectonic plates began to slide under the North American plate. The angle of subduction was shallow, resulting in a broad belt of mountains running down western North America. Since then, further tectonic activity and erosion by glaciers has sculpted the Rockies into dramatic peaks and valleys.

The rocks in the Rocky Mountains were formed before the mountains were raised by tectonic forces. The oldest rock is Precambrian metamorphic rock that forms the core of the North American continent. There is also Precambrian sedimentary argillite, dating back to 1.7 billion years ago. During the Paleozoic, western North America lay underneath a shallow sea, which deposited many kilometers of limestone and dolomite.
In the southern Rocky Mountains, near present-day Colorado, these ancestral rocks were disturbed by mountain building approximately 300 mya, during the Pennsylvanian. This mountain building produced the Ancestral Rocky Mountains. They consisted largely of Precambrian metamorphic rock forced upward through layers of the limestone laid down in the shallow sea. The mountains eroded throughout the late Paleozoic and early Mesozoic, leaving extensive deposits of sedimentary rock.  
                                                                                                          
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Popular Locations / Tourist Locations / National Parks

Banff National Park, Alberta Canada
Yellowstone National Park, Wyoming, Montana, Idaho USA
Jasper National Park, Alberta Canada
Grand Teton National Park, Wyoming USA
Kootenay National Park, British Columbia Canada
Rocky Mountain National Park, Colorado USA
Yoho National Park, British Columbia Canada
Waterton Lakes National Parks,Alberta Canada
Great Sand Dunes National Park, Colorado USA
Mount Robson Provincial Park, British Columbia Canada
Estes Park, Colorado USA 
Mount Assiniboine Provincial Park, British Columbia Canada
Black Canyon of the Gunnison National park, Colorado USA
Hamber Provincial Park, British Columbia Canada


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How Long are The Rocky Mountains?
The Rocky Mountains stretches from Alberta & British Columbia (Canada) all the way south to New Mexico (United States of America) which is a distance of about 3,000 miles / 4,800km

Where are The Rockies? Where are The Rocky Mountains? Where are The Rocky Mountains located? 
The Rocky Mountains (The Rockies) are a mountain range located in western North America which stretches from Canada to the United States, starting from northern British Columbia Canada to New Mexico United States.

How old are The Rocky Mountains?
The Rocky Mountains (The Rockies) are about 80 million years old. The Rocky Mountains was formed up to 80 million years ago during the Laramide Orogeny.

Where are The Rockies located in Canada? Where are the Canadian Rockies?
The Rockies in Canada "Canadian Rockies" (a segment of The Rocky Mountains) are extended from northern British Columbia southeastward to Alberta (British Columbia & Alberta).

What is the highest peak in The Rockies (The RockyMountains)? How tall is the tallest mountain in The Rockies? How tall are The Rockies? Where is the tallest part of The Rocky Mountains? 
Mount Elbert is the highest peak in the Rocky Mountains which is about 14,433 feet (4,399 meter) above sea level in the Sawatch Range Colorado.

What is the highest peak in the Canadian Rockies?
Mount Robson in British Columbia at 3,954 meters (12,972 ft), is the highest peak in the Canadian Rockies.      

What states / Provinces do The Rockies go through?
The Rocky Mountain range passes through the Canadian Provinces British Columbia & Alberta, and the US States of Colorado, Idaho, Montana, Utah, Wyoming & New Mexico.

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