Rocky Mountains, usually called the Rockies, is a mountain range that extends to the west of North America. Length of more than 3 thousand miles (4,800 kilometers) stretching from British Columbia, in Canada, to New Mexico, in the United States. The highest peak is Mount Elbert, in Colorado, approximately 4,401 feet) above sea level (asl). Mount Robson, is at the level of a 3,954 meters is the highest peak in the Canadian Rockies. Rocky Mountains Mountain system, including the United States physiographic region.
Rocky Mountains usually defined stretches of Liard River in British Columbia, to the Rio Grande in New Mexico. The mountain can also be stretched from Alaska or Mexico, but the mountain is regarded as part of the whole rather than a part of the American cordillera Rockies.
Youngest part of the Rocky Mountains uplifted during the late Cretaceous (140 million-65 million years ago), though the mountains south part elevated at the time of Precambrian (3,980 million-600 million years ago). Consists of a complex geological conditions igneous and metamorphic rocks; youngest is a sedimentary rock (located along the southern boundary of the Rocky Mountains), and the volcanic rocks of Tertiary age (65 million-1.8 million-year-yl.) Located in the mountainous area of San Juan and in some other areas.
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