The Rocky Mountains, also known as the Rockies, are a major mountain range and longest in western North America. The Rocky Mountains stretch more than 3,000 miles (4,800 km) from the northernmost part of British Columbia, in western Canada, to New Mexico, in the Southwestern United States.

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

The Rockies are in the states of Alaska, Idaho, Montana, Wyoming, Colorado, Utah, Colorado and New Mexico. Also, the range crosses British Columbia.

The Continental Divide for North America is located along the high ridge of the Rocky Mountains. Depending whether rain fall east or west of this ridgeline determines determines if it flows to the Pacific Ocean, the Atlantic or the Gulf of Mexico

The highest mountain in the Rockies is Mount Elbert in Colorado which rises 14,440 feet above sea level.

The Rocky Mountains include at least 100 separate ranges, which are generally divided into four broad groupings: the Canadian Rockies and Northern Rockies of Montana and northeastern Idaho; the Middle Rockies of Wyoming, Utah, and southeastern Idaho; the Southern Rockies, mainly in Colorado and New Mexico.

Some of the smaller ranges include: Bighorn Range, Bitterroot Range, Front Range, and Wasatch Mountains,

The Rockies are know for their distinct seasons of warm rainy summers and cold snowy winters. Much of the Rocky Mountains is covered with forests of spruces, pines, oaks, junipers and firs.

The Rockies have a wide variety of wildlife, including many large mammals such as badgers, bears (black and grizzly), bighorn sheep, coyotes, cougars, deer (mule and white-tail) elk, moose, mountain goats, and wolves.

The Rocky Mountain are considered to be fold mountains. This means that they were formed at a location where two of the Earth′s tectonic plates meet.

The Rocky Mountains in Montana include: Absaroka range, Beaverhead Mountins, Beartooth mountains, Bears Paw mountain, Big Belt mountains, Bighorn mountains, Big Sheep mountains, Bitteroot range, Bridger rante, Cabinet mountains, Coeru d′Alene mountains, Columbia mountains, Crazy mountains, Elkhorn mountains, Flathead range Gallatin range, Granite range Judith mountains Lewis Range, Little Rocky mountains, Livingston Range Madison range, Mission mountains, Pioneer mountains, purcell mountaing, Salish mountains, Sapphire mountains, Smoky range Tobacco Root mountains, White range, Wolf mountains,

The Rocky Mounains in Northern Idaho include: Beaverhead mountains, Bighorn Crags, Bitteroot mountains, Bitteroot range, Bolder mountains, Centennial mountains, Clearwater mountains, ....

The Middle Rockies include ranges in three states.

The Rocky Mountains in Wyoming include:

The Rocky Mountains in Utah include: Bally Mountains,

The Rocky Mountains in southern Idaho include: Albion mountains, Aspen range, Bannock range, Bear River range, Big Hole mountains, Blackfoot mountains, Boise mountains, Caribou range, Castle Rocks, Cedar Hills, Chesterfield range, ...

The Southern Rockies include ranges in Colorado and New Mexico.

The Rocky Mountains in Colorado include: Sawatch Range (Mount Elbert-14440), Sangre de Cristo Mountains (Blanco Peak-14351), San Juan Mountains (Uncopahgre Peak-14321), Mosquito Range (Mount Lincoln-14293), Elk Mountains (Castle Peak-14279), Front Range (Grays Peak-14272), Chicargo Peaks (Mount Evans-14271), Twin Peaks Massif (Longs Peak-14259) Mummy Range (Hagues Peak-13573), Indian Peaks (N.Arapaho Peak-13508), Never Summer Mountains (Mount Richthofen-13508), Collegiate Peaks (Mount Harvard), Medicine Bow Mountains (Clark Peak-12960), Tenmile Range (quandary Peak), Park Range (Mount Zirkel), Gore Range (Mount Powell-13586), Rabbit Ears Range (Parkview Mountain-12301), Spanish Peaks (West Spanish), West Elk Mountains (Whetstone Moutain) La Garita Moutains, Needle Mountains (Windom Peak), Kenosha Mountains (Green Moutain), Grand Mesa (Crater Peak), Southern Rocky Mountain, Wet Mountain (Greenhorn Peak), Elkhead Mountains (Black Mountain), La Plata Mountains (Lavender Peak), Unita Mountains (Kings Peak),

The Rocky Mountains in New Mexico include: