The Gunnison River is a tributary of the Colorado River, 164 miles (264 km) long, in the Southwestern state of Colorado. It is the largest tributary of the Colorado River in Colorado, with a mean flow of 2,570 cu ft/s (73 m3/s).
Roaring Fork River is a tributary of the Colorado River, approximately 70 miles (110 km) long, in west central Colorado in the United States. The river drains a populated and economically vital area of the Colorado Western Slope called the Roaring Fork Valley or Roaring Fork Watershed, which includes the resort city of Aspen and the resorts of Aspen/Snowmass.
The Fryingpan River is a tributary of the Roaring Fork River, approximately 42 miles (68 km) long, in west central Colorado in the United States.
White River is a river, approximately 195 miles (314 km) long, in the U.S. states of Colorado and Utah and is a tributary of the Green River.
The Cimarron River extends 698 miles (1,123 km) across New Mexico, Oklahoma, Colorado, and Kansas. The headwaters flow from Johnson Mesa west of Folsom in northeastern New Mexico. Much of the river's length lies in Oklahoma, where it either borders or passes through eleven counties. There are no major cities along its route.The river enters the Oklahoma Panhandle near Kenton, crosses the southeastern corner of Colorado into Kansas, re-enters the Oklahoma Panhandle, re-enters Kansas, and finally returns to Oklahoma where it joins the Arkansas River at Keystone Reservoir west of Tulsa, Oklahoma, its only impoundment. The Cimarron drains a basin that encompasses about 18,927 square miles (49,020 km2).
The North Fork White River is a 33.0-mile-long (53.1 km) tributary of the White River. The river's source is Wall Lake in the Flat Tops Wilderness Area of Garfield County, Colorado. It joins with the South Fork White River in Rio Blanco County to form the White River.
The South Fork White River is a 38.6-mile-long (62.1 km) tributary of the White River. The river's source is in the Flat Tops Wilderness Area of Garfield County, Colorado. It joins with the North Fork White River in Rio Blanco County to form the White River.
The North Fork Smoky Hill River is a river in the central Great Plains of North America. A tributary of the Smoky Hill River, it flows from eastern Colorado into western Kansas.
North Fork Cimarron River is a 169-mile-long (272 km) tributary of the Cimarron River that flows from a source in Comanche National Grassland in Baca County, Colorado. It joins the Cimarron River west of Satanta in Haskell County, Kansas.
West Mancos River is a 13.1-mile-long (21.1 km) tributary of the Mancos River in Montezuma County, Colorado. The river flows from the confluence of its North and South forks in the San Juan National Forest to a confluence with the East Mancos River that forms the Mancos River.
Lake Fork Gunnison River or Lake Fork is a 64.7-mile-long (104.1 km) tributary of the Gunnison River in Colorado. The river's source is Sloan Lake near Handies Peak in the San Juan Mountains of Hinsdale County. Lake Fork flows through Lake San Cristobal and Lake City before a confluence with the Gunnison River in Blue Mesa Reservoir.
Little Cimarron River is a 24.6-mile-long (39.6 km) tributary that joins the Cimarron River in Montrose County, Colorado. The river's source is near Silver Peak in the Uncompahgre Wilderness of Hinsdale County.
South Fork San Miguel River is a 6.5-mile-long (10.5 km) tributary of the San Miguel River in San Miguel County, Colorado. The river flows north from a confluence of the Lake Fork and the Howard Fork to a confluence with the San Miguel River west of Telluride.
North Fork Little Snake River is a 13.1-mile-long (21.1 km) tributary of the Little Snake River in Colorado and Wyoming. It flows from a source in the Medicine Bow National Forest of Carbon County, Wyoming to a confluence with the Middle Fork Little Snake River in Routt County, Colorado that forms the Little Snake River.
Middle Fork Cimarron River is a 10.3-mile-long (16.6 km) tributary of the Cimarron River in Colorado. The river's source is east of Coxcomb Peak in the Uncompahgre Wilderness of Hinsdale County. It joins the East Fork Cimarron River in Gunnison County to form the Cimarron River.
East Fork Cimarron River is a 12.6-mile-long (20.3 km) tributary of the Cimarron River in Colorado. The river's source is near Wetterhorn Peak in the Uncompahgre Wilderness of Hinsdale County. It joins the Middle Fork Cimarron River in Gunnison County to form the Cimarron River, and is impounded by Silver Jack Dam.
The Williams Fork is a tributary of the Colorado River, approximately 33.8 miles (54.4 km) long, in north central Colorado in the United States. It flows through Grand County between the valleys of the Fraser River and the Blue River. It rises at the juncture of McQueary and Bobtail creeks just west of the Continental Divide 8 miles (13 km) west of Berthoud Pass and 7 miles (11 km) north of the Eisenhower Tunnel in the Arapaho National Forest. It flows north-northwest to the Williams Fork Reservoir, then turns northeast and joins the Colorado at Parshall.
East Fork Little Cimarron River is a tributary of the Little Cimarron River in Gunnison County, Colorado. The stream flows north from a source in the Uncompahgre National Forest to a confluence with the Little Cimarron River.
