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).
The Dolores River is a tributary of the Colorado River, approximately 241 miles (388 km) long, in the U.S. states of Colorado and Utah. The river drains a rugged and arid region of the Colorado Plateau west of the San Juan Mountains. Its name derives from the Spanish El Rio de Nuestra Señora de Dolores, River of Our Lady of Sorrows. The river was explored and possibly named by Juan Maria Antonio Rivera during a 1765 expedition from Santa Fe.
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.
Animas River (an-e-muss) is a 126-mile-long (203 km) river in the western United States, a tributary of the San Juan River, part of the Colorado River System.
The North Fork Gunnison River is a tributary of the Gunnison River, 33.5 miles (53.9 km) long, in southwestern Colorado in the United States. It drains part of the southwestern flank of the Elk Mountains northeast of Delta.
The Rio Chama, a major tributary river of the Rio Grande, is located in the U.S. states of Colorado and New Mexico. The river is about 130 miles (210 km) long altogether. From its source to El Vado Dam its length is about 50 miles (80 km), from El Vado Dam to Abiquiu Dam is about 51 miles (82 km), and from Abiquiu Dam to its confluence with the Rio Grande is about 34 miles (55 km).
The Piedra River is a river in the U.S. state of Colorado. It drains parts of Archuleta, Hinsdale, and Mineral counties along a mainstem length of about 40 miles (64 km). The river flows through a series of isolated box canyons, emptying into the San Juan River at Navajo Lake. Its name stems from the Spanish word, piedra, meaning rock.
The Jemez River is a tributary of the Rio Grande in the U.S. state of New Mexico. The river is formed by the confluence of the East Fork Jemez River and San Antonio Creek, which drain a number of tributaries in the area of the Jemez Mountains and Santa Fe National Forest. The Jemez River is about 50 miles (80 km) long, or about 80 miles (130 km) long if its longest headwater tributary, San Antonio Creek, is included. The East Fork Jemez River is about 22 miles (35 km) long. Both San Antonio Creek and the East Fork Jemez River flow through intricate meanders along their courses. The East Fork Jemez is a National Wild and Scenic River.
The South Fork Elk River is a 13.5-mile-long (21.7 km) stream in Colorado in the United States. It flows from a source near Dome Lake in Routt National Forest north of Steamboat Springs to a confluence with the Elk River.
Middle Fork Elk River is a 3.5-mile-long (5.6 km) stream in Colorado. It flows from a confluence of Gilpin Creek and Gold Creek in Routt National Forest north of Steamboat Springs to a confluence with the North Fork Elk River that forms the Elk River.
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.
East Fork Eagle River is an 8.6-mile-long (13.8 km) tributary of the Eagle River in Eagle County, Colorado. The river flows from a source on Chicago Ridge in the White River National Forest to a confluence with the South Fork Eagle River that forms the Eagle River.
South Fork Eagle River is a 6.9-mile-long (11.1 km) tributary of the Eagle River in Eagle County, Colorado. The river flows from a source east of Tennessee Pass in the White River National Forest to a confluence with the East Fork Eagle River that forms the Eagle River.
North Fork Elk River, or North Fork Elk Creek is a 15.2-mile-long (24.5 km) tributary of the Elk River in Routt County, Colorado. It flows from a source on the northeast slopes of Big Agnes Mountain in the Mount Zirkel Wilderness to a confluence with the Middle Fork Elk River that forms the Elk River.
Middle Fork Little Snake River is a 17.5-mile-long (28.2 km) tributary of the Little Snake River in Routt County, Colorado. It flows from a source near the Continental Divide in Routt National Forest to a confluence with the North Fork Little Snake River that forms the Little Snake River.
South Fork Little Snake River is an 18.2-mile-long (29.3 km) tributary of the Little Snake River in Routt County, Colorado. It flows north from a source in Routt National Forest near Steamboat Lake State Park to a confluence with the Little Snake River.
North Fork West Mancos River is a tributary of the West Mancos River in Montezuma County, Colorado. The river flows from a source east of Hesperus Mountain in the San Juan National Forest to a confluence with the South Fork that forms the West Mancos River.
South Fork West Mancos River is a tributary of the West Mancos River in Montezuma County, Colorado. The river flows from a source in the Owen Basin of the San Juan National Forest to a confluence with the North Fork that forms the West Mancos River.
