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the Rocky Mountains

1

The Rocky Mountains, also known as the Rockies, are a major mountain range located in western North America.

North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere.

A mountain range is a geographic area containing numerous geologically related mountains.

Best Hike in the Rocky Mountain National Park by Lizi On Location

2

The Rocky Mountains stretch 3,000 km in straight-line distance from the northernmost part of British Columbia, in western Canada, to New Mexico in the Southwestern United States.

The Southwestern United States is a region of the United States which includes Arizona, the western portion of New Mexico, bordered on the east by the Llano Estacado, southern Colorado and Utah below the 39th parallel, the "horn" of Texas below New Mexico, the southernmost triangle of Nevada, and the most southeastern portion of California, which encompasses the Mojave and Colorado Deserts.

The United States of America, commonly referred to as the United States or America, is a federal republic composed of 50 states, a federal district, five major self-governing territories, and various possessions.

British Columbia,, is the westernmost province of Canada, with a population of more than 4 million people located between the Pacific Ocean and the Rocky Mountains.

Rocky Mountaineer Train Journey - All Aboard from Vancouver to Banff by The Planet D

3

The northern terminus is near the Liard River, while the southernmost point is near Albuquerque, adjacent the Sandia–Manzano Mountains.

The Sandia–Manzano Mountains are a substantial mountain area that defines the eastern edge of the middle Rio Grande valley of central New Mexico.

The Liard River of the North American boreal forest flows through Yukon, British Columbia and the Northwest Territories, Canada.

Albuquerque is the most populous city in the U.S. state of New Mexico.

4

Located within the North American Cordillera, the Rockies are distinct from the Pacific Coast Ranges, Cascade Range, and the Sierra Nevada, which all lie farther to the west.

The American Cordillera is a chain of mountain ranges that consists of an almost continuous sequence of mountain ranges that form the western "backbone" of North America, South America and Central America.

The Cascade Range or Cascades is a major mountain range of western North America, extending from southern British Columbia through Washington and Oregon to Northern California.

The Pacific Coast Ranges, are the series of mountain ranges that stretch along the West Coast of North America from Alaska south to Northern and Central Mexico.

5

The Rocky Mountains formed 80 million to 55 million years ago during the Laramide orogeny, in which a number of plates began sliding underneath the North American plate.

The Laramide orogeny was a period of mountain building in western North America, which started in the Late Cretaceous, 70 to 80 million years ago, and ended 35 to 55 million years ago.

The North American Plate is a tectonic plate covering most of North America, Greenland, Cuba, the Bahamas, extreme northeastern Asia, and parts of Iceland and the Azores.

6

The angle of subduction was shallow, resulting in a broad belt of mountains running down western North America.

Subduction is a geological process that takes place at convergent boundaries of tectonic plates where one plate moves under another and is forced to sink due to high gravitational potential energy into the mantle.

7

Since then, further tectonic activity and erosion by glaciers have sculpted the Rockies into dramatic peaks and valleys.

In earth science, erosion is the action of surface processes that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location.

8

At the end of the last ice age, humans began inhabiting the mountain range.

9

After Europeans, such as Sir Alexander Mackenzie, and Americans, such as the Lewis and Clark expedition, began exploring the range, minerals and furs drove the initial economic exploitation of the mountains, although the range itself never experienced a dense population.

Sir Alexander Mackenzie was a Scottish explorer known for accomplishing the first east to west crossing of America north of Mexico in 1793, which preceded the more famous Lewis and Clark Expedition by 12 years.

The Lewis and Clark Expedition from May 1804 to September 1806, also known as the Corps of Discovery Expedition, was the first American expedition to cross the western portion of the United States.

10

Of the 100 highest peaks in the Rocky Mountains, 78 are located in Colorado, ten in Wyoming, six in New Mexico, and three in Montana.

Colorado is a state of the United States encompassing most of the southern Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains.

11

Public parks and forest lands protect much of the mountain range, and they are popular tourist destinations, especially for hiking, camping, mountaineering, fishing, hunting, mountain biking, skiing, and snowboarding.

Hiking is the preferred term, in Canada and the United States, for a long, vigorous walk, usually on trails, in the countryside, while the word walking is used for shorter, particularly urban walks.

Snowboarding is a recreational activity and Winter Olympic and Paralympic sport that involves descending a snow-covered slope while standing on a snowboard attached to a rider's feet.

Skiing is a mode of transport, recreational activity and competitive winter sport in which the participant uses skis to glide on snow.

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