The geography of the State of Colorado is unusually diverse, encompassing both rugged mountainous terrain and vast plains. The State of Colorado is defined as the geospherical rectangle that stretches from 37°N to 41°N latitude and from 102°03'W to 109°03'W longitude (25°W to 32°W from the Washington Meridian). Colorado is one of only three U.S. states (with Wyoming and Utah) that have only lines of latitude and longitude for boundaries.

The summit of Mount Elbert at 4401 meters (14,440 ft) elevation in Lake County is the state's highest point and the highest point in the entire Rocky Mountains. Colorado has approximately 550 mountain peaks that exceed 4000 meters (13,123 ft) elevation. Colorado is the only U.S. state that lies entirely above 1000 meters (3281 ft) elevation. The state's lowest elevation is 1010 meters (3315 ft) at the point on the eastern boundary of Yuma County where the Arikaree River flows into the State of Kansas.

Regions

To the east of the Rocky Mountains in Colorado are the Colorado Eastern Plains, the section of the Great Plains within Colorado at elevations ranging from 3,500 to 7,000 feet (1,000 to 2,000 m). Kansas and Nebraska border Colorado to the east.

The plains are sparsely settled with most population along the South Platte and the Arkansas rivers. Rainfall is meager, averaging about 15 inches (380 mm) annually. There is some irrigated farming, but much of the land is used for dryland farming or ranching. Winter wheat is a typical crop and most small towns in the region boast both a water tower and a grain elevator.

The bulk of Colorado's population lives along the eastern edge of the Rocky Mountains in the Front Range Urban Corridor. This region is partially protected from prevailing storms by the high mountains to the west.

To the west lies the eastern slope of the Rocky Mountains with notable peaks such as Longs Peak, Mount Evans, Pikes Peak, and the Spanish Peaks near Walsenburg in the south. This area drains to the east, is forested, and partially urbanized. With urbanization, utilization of the forest for timbering and grazing resulted in accumulation of fuel. During the drought of 2002 devastating forest fires swept this area.

The Continental Divide stretches along the crest of the Rocky Mountains. To the west of the Continental Divide is the Western Slope. Water west of the Continental Divide drains west into the Pacific Ocean via the Colorado River.

Within the interior of the Rocky Mountains are several large parks or high broad basins. In the north, on the east side of the Continental Divide is North Park. North Park is drained by the North Platte River, which flows north into Wyoming. Just south but on the west side of the Continental Divide is Middle Park, drained by the Colorado River. South Park is the headwaters of the South Platte River. To the south lies the San Luis Valley, the headwaters of the Rio Grande, which drains into New Mexico. Across the Sangre de Cristo Range to the east of the San Luis Valley lies the Wet Mountain Valley. These basins, particularly the San Luis Valley, lie along the Rio Grande Rift, a major tectonic feature. See Rift.

The Rocky Mountains within Colorado contain 54 peaks that are 14,000 feet (4270 m) or higher, known as fourteeners. The mountains are timbered with conifers and aspen to the tree line, at an elevation of about 12,000 feet (4,000 m) in southern Colorado to about 10,500 feet (3,200 m) in northern Colorado; above this only alpine vegetation grows. The Rockies are snow-covered only in the winter; most snow melts by mid-August with the exception of a few small glaciers. The Colorado Mineral Belt, stretching from the San Juan Mountains in the southwest to Boulder and Central City on the front range, contains most of the historic gold and silver mining districts of Colorado.

The Western Slope is generally drained by the Colorado River and its tributaries. Notable to the south are the San Juan Mountains, an extremely rugged mountain range, and to the west of the San Juans, the Colorado Plateau, a high desert bordering Southern Utah. Grand Junction is the largest city on the Western Slope. Grand Junction is served by Interstate Highway I-70. To the southeast of Grand Junction is Grand Mesa, a large flat-topped mountain. Further east are the ski resorts of Aspen, Vail, Crested Butte, and Steamboat Springs. The northwestern corner of Colorado bordering Northern Utah and Western Wyoming is mostly sparsely populated rangeland.

From west to east, the state consists of desert-like basins, turning into plateaus, then alpine mountains, and then the grasslands of the Great Plains. Mount Elbert is the highest peak in the Rocky Mountains within the continental United States. The famous Pikes Peak is just west of Colorado Springs. Its lone peak is visible from near the Kansas border on clear days.

See also

• Colorado 4000 meter peaks
• Colorado counties
• Colorado drainage basins
• Colorado geographic regions
• Colorado mountain passes
• Colorado mountain peaks
• Colorado mountain ranges
• Colorado Plateau
• High Plains
• List of Colorado fourteeners
• List of Colorado rivers
• Mountain peaks of the Rocky Mountains.
• Southern Rocky Mountains
• Wikimedia Commons: Geography of Colorado

External links

• State of Colorado website
• Geography of Colorado

References

1. Blake, Kevin S. 2002. Colorado Fourteeners and the Nature of Place Identity. Geographical Review 92(2): 155-179.