This is a list of rivers and streams in the U.S. State of Colorado .
The following alphabetical list includes many important streams that flow through the State of Colorado, including all 158 named rivers. Where available, the total extent of the stream's drainage basin [1] is shown after the name. The names of the 17 Colorado rivers with a drainage basin of more than 10,000 square kilometers (3,900 sq mi), about three times the area of Rhode Island, are shown in bold.
Of the 158 named rivers that flow through the State of Colorado, all but the Green River [lower-alpha 3] and Cimarron River [lower-alpha 1] have their headwaters in that state.
As of February 1, 2008, the U.S. Board on Geographic Names had identified 5,564 natural streams in the State of Colorado. Of this number, 147 larger streams (2.6%) were named river and 11 (0.2%) were named rio. The vast majority of the Colorado streams (5082 or 91.3%) were named creek . Of the remaining Colorado streams, 122 (2.2%) were named arroyo , 60 (1.1%) were named wash , 44 (0.8%) were named fork, 18 (0.3%) were named branch, 17 (0.3%) were named brook, 17 (0.3%) were named run, 15 (0.3%) were named rito, 10 (0.2%) were named slough , but not a single stream was named stream . Perhaps the most unusual river name in Colorado belongs to the West Fork East Fork Williams Fork located in Garfield County.
Many streams in Colorado share a name with another stream in the same state. In addition to the Canadian River that is the largest tributary of the Arkansas River, there is also a Canadian River that is a tributary of the North Platte River. In addition to the Cimarron River that is another major tributary of the Arkansas River, there is also a Cimarron River that is a tributary of the Gunnison River. There is a Fall River that is a tributary of the Big Thompson River as well as a Fall River that is a tributary of Clear Creek.
There are 72 streams in the State of Colorado that are named Willow Creek, 71 streams named Spring Creek, 53 streams named Cottonwood Creek, 49 streams named Bear Creek, 49 streams named Beaver Creek, 48 streams named Dry Creek, 33 streams named Rock Creek, 33 streams named Sand Creek, and 32 streams named Mill Creek. The Arkansas River and the Colorado River flow through Colorado, as do a Florida River, an Idaho Creek, an Illinois River, an Indiana Creek, a Maryland Creek, a Michigan River, a Minnesota Creek, six Missouri Creeks, a Montana Creek, two New York Creeks, two Ohio Creeks, two Pennsylvania Creeks, two Tennessee Creeks, seven Texas Creeks, and a Virginia Creek.
The following tributary chart shows many important streams that flow through the State of Colorado including all 158 named rivers. The chart is arranged by tributary and area of the drainage basin. [1] The names of the 17 Colorado rivers with a drainage basin of more than 10,000 square kilometers (3,900 sq mi) are shown in bold. Oceans and streams outside of Colorado are shown in italics.
Pacific Ocean
Atlantic Ocean
The San Luis Valley is a region in south-central Colorado with a small portion overlapping into New Mexico. The valley is approximately 122 miles (196 km) long and 74 miles (119 km) wide, extending from the Continental Divide on the northwest rim into New Mexico on the south. It contains 6 counties and portions of 3 others. It is an extensive high-elevation depositional basin of approximately 8,000 square miles (21,000 km2) with an average elevation of 7,664 feet (2,336 m) above sea level. The valley is a section of the Rio Grande Rift and is drained to the south by the Rio Grande, which rises in the San Juan Mountains to the west of the valley and flows south into New Mexico. The San Luis Valley has a cold desert climate but has substantial water resources from the Rio Grande and groundwater.
The South Platte River is one of the two principal tributaries of the Platte River. Flowing through the U.S. states of Colorado and Nebraska, it is itself a major river of the American Midwest and the American Southwest/Mountain West. Its drainage basin includes much of the eastern flank of the Rocky Mountains in Colorado, much of the populated region known as the Colorado Front Range and Eastern Plains, and a portion of southeastern Wyoming in the vicinity of the city of Cheyenne. It joins the North Platte River in western Nebraska to form the Platte, which then flows across Nebraska to the Missouri. The river serves as the principal source of water for eastern Colorado. In its valley along the foothills in Colorado, it has permitted agriculture in an area of the Colorado Piedmont and Great Plains that is otherwise arid.
The Gunnison River is located in western Colorado, United States and is one of the largest tributaries of the Colorado River.
Curecanti National Recreation Area is a National Park Service unit located on the Gunnison River in western Colorado. Established in 1965, Curecanti National Recreation Area is responsible for developing and managing recreational facilities on three reservoirs, Blue Mesa Reservoir, Morrow Point Reservoir and Crystal Reservoir, constructed on the upper Gunnison River in the 1960s by the U.S. Bureau of Reclamation to better utilize the vital waters of the Colorado River and its major tributaries. A popular destination for boating and fishing, Curecanti offers visitors two marinas, traditional and group campgrounds, hiking trails, boat launches, and boat-in campsites. The state's premiere lake trout and Kokanee salmon fisheries, Curecanti is a popular destination for boating and fishing, and is also a popular area for ice-fishing in the winter months.
The Collegiate Peaks Wilderness is a 168,000-acre (680 km2) area located in central Colorado between Leadville and Buena Vista to the east and Aspen to the west and Crested Butte to the southwest. Most of the area is in the San Isabel and Gunnison National Forests, with a smaller area in the White River National Forest southeast of Aspen. Most of the area is in northwest Chaffee County with smaller portions in Gunnison, Pitkin, and Lake counties.