The Rocky Mountains, often called the Rockies, are a broad mountain range in western North America. The Rocky Mountains stretch more than 3,000 miles (4,800 kilometers) from British Columbia, in Canada, to New Mexico, in the United States. The highest peak is Mount Elbert, in Colorado, which is 14,440 feet (4,401 meters) above sea level. Mount Robson, at 12,972 feet (3,954 meters) is the highest peak in the Canadian Rockies. The Rocky Mountain System is a United States physiographic region.

Geography & Climate

The Rocky Mountains are commonly defined to stretch from the Liard River in British Columbia, down to the Rio Grande in New Mexico. The mountains can also be considered to run to Alaska or Mexico, but usually those mountains are considered to be part of the entire American cordillera, rather than part of the Rockies.

Water in its many forms sculpted the present Rocky Mountain landscape (Athearn 1960). Runoff and snowmelt from the peaks feed Rocky Mountain rivers and lakes with the water supply for one-quarter of the United States. The rivers that flow from the Rocky Mountains eventually drain into three of the world's five Oceans: the Atlantic Ocean, the Pacific Ocean, and the Arctic Ocean.

The Continental Divide is located in the Rocky Mountains and designates the line at which waters flow either to the Atlantic or Pacific Oceans. Triple Divide Peak (8020 feet/2444 m) in Glacier National Park (US) is so named due to the fact that water which falls on the mountain reaches not only the Atlantic and Pacific, but the Arctic Ocean as well.

The Rocky Mountains have a highland climate. The average temperature in the Rockies per year is 43 °F (6 °C). July is the hottest month with an average temperature of 82 °F (28 °C). In January, the average monthly temperature is 7 °F (−14 °C), making it the coldest month in the Rockies. The average precipitation per year is approximately 14 inches (360 mm).

The summers in the Rockies are warm and dry, because the western fronts impede the advancing of water-carrying storm systems. The average temperature in summer is 59 °F (15 °C) and the average precipitation is 5.9 inches (150 mm). Winter is usually wet and very cold, with an average temperature of 28 °F (−2 °C) and average snowfall of 11.4 inches (29.0 cm). In spring, the average temperature is 40 °F (4 °C) and the average precipitation is 4.2 inches (107 mm). And in the fall, the average precipitation is 2.6 inches (66 mm) and the average temperature is 44 °F (7 °C).

The Rocky Mountains stretch more than 3,000 miles (4,800 kilometers) from British Columbia, in Canada, to New Mexico, in the United States.

History

Since the last great Ice Age, the Rocky Mountains were a sacred home first to Paleo-Indians and then to the Native American tribes of the Apache, Arapaho, Bannock, Blackfoot, Cheyenne, Crow. Flathead, Shoshoni, Sioux, Ute, and others (Johnson 1994). Paleo-Indians hunted the now-extinct mammoth and ancient bison (an animal 20% larger than modern bison) in the foothills and valleys of the mountains. Like the modern tribes that followed them, Paleo-Indians probably migrated to the plains in fall and winter for bison and to the mountains in spring and summer for fish, deer, elk, roots, and berries. In Colorado, along the crest of the Continental Divide, rock walls that Native Americans built for driving game date back 5,400-5,800 years (Buchholtz 1983). A growing body of scientific evidence indicates that Native Americans had significant effects on mammal populations by hunting and on vegetation patterns through deliberate burning (Kay 1994).

Recent human history of the Rocky Mountains is one of more rapid change (Lavender 1975; Knight 1994). The Spanish explorer Francisco Vásquez de Coronado--with a group of soldiers, missionaries, and African slaves--marched into the Rocky Mountain region from the south in 1540. The introduction of the horse, metal tools, rifles, new diseases, and different cultures profoundly changed the Native American cultures. Native American populations were extirpated from most of their historical ranges by disease, warfare, habitat loss (eradication of the bison), and continued assaults on their culture.

Tourism

Every year the scenic areas and recreational opportunities of the Rocky Mountains draw millions of tourists. The main language of the Rocky Mountains is English. But there are also linguistic pockets of Spanish and Native American languages.

People from all over the world visit the sites to hike, camp, or engage in mountain sports. In the summer, main tourist attractions are :
• Pikes Peak
• Royal Gorge
• Rocky Mountain National Park
• Yellowstone National Park
• Grand Teton National Park
• Glacier National Park (U.S.)

Canadian National Parks in the mountain range are :
• Banff National Park
• Glacier National Park (Canada)
• Jasper National Park
• Kootenay National Park
• Mount Revelstoke National Park
• Waterton Lakes National Park
• Yoho National Park

Glacier National Park (U.S.) and Waterton Lakes National Park border each other on the U.S./Canadian border and collectively are known as the Waterton-Glacier International Peace Park.

In the winter, skiing is popular at :
Colorado:
? Aspen
? Vail
? Keystone
? Breckenridge
Utah:
? Alta
? Snowbird
? Park City
Sun Valley, Idaho
Montana:
? Big Mountain
? Big Sky
Alberta:
? Lake Louise
? Sunshine Village
Fernie, British Columbia

The adjacent Columbia Mountains in British Columbia and Idaho contain major resorts such as Schweitzer, Panorama and Kicking Horse.