The Little Colorado River is a tributary of the Colorado River in the U.S. state of Arizona, providing the principal drainage from the Painted Desert region. Together with its major tributary, the Puerco River, it drains an area of about 26,500 square miles (69,000 km2) in eastern Arizona and western New Mexico. Although it stretches almost 340 miles (550 km), only the headwaters and the lowermost reaches flow year-round. Between St. Johns and Cameron, most of the river is a wide, braided wash, only containing water after heavy snowmelt or flash flooding.
The San Juan River is a major tributary of the Colorado River in the southwestern United States, providing the chief drainage for the Four Corners region of Colorado, New Mexico, Utah and Arizona. Originating as snowmelt in the San Juan Mountains of Colorado, it flows 383 miles (616 km) through the deserts of northern New Mexico and southeastern Utah to join the Colorado River at Glen Canyon. The river drains a high, arid region of the Colorado Plateau and along its length it is often the only significant source of fresh water for many miles. The San Juan is also one of the muddiest rivers in North America, carrying an average of 25 million US tons of silt and sediment each year.
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.
The Blue River is a tributary of the Colorado River, approximately 65 miles (105 km) long, in the U.S. state of Colorado.
The Humboldt River runs through northern Nevada in the western United States. At approximately 290 miles (470 km) long it is the third longest river in the Great Basin, after the Bear and Sevier Rivers. It has no outlet to the ocean, but instead empties into the Humboldt Sink. It is the fifth largest river in the United States, in terms of discharge, that does not ultimately reach the ocean, while it is the largest in terms of area drained. Through its tributaries the river drains most of sparsely populated northern Nevada, traversing the state roughly east to west, and passing through repeated gaps in the north-south running mountain ranges. It furnishes the only natural transportation artery across the Great Basin and has provided a route for historic westward migrations and subsequent railroads and highways. The river is named for the German naturalist Alexander von Humboldt.
The Paria River is a tributary of the Colorado River, approximately 95 miles (153 km) long, in southern Utah and northern Arizona in the United States. It drains a rugged and arid region northwest of the Colorado, flowing through roadless slot canyons along part of its course.
The Bear River is the largest tributary of the Great Salt Lake, draining a mountainous area and farming valleys northeast of the lake and southeast of the Snake River Plain. It flows through southwestern Wyoming, southeastern Idaho, and northern Utah, in the United States. Approximately 350 miles (560 km) long it is the largest river in North America that does not ultimately reach the sea.
The San Jacinto River is a 42-mile-long (68 km) river in Riverside County, California. The river's headwaters are in San Bernardino National Forest, but the lower portion of the 765-square-mile (1,980 km2) watershed is urban and agricultural land. As a partially endorheic watershed that is contiguous with other Great Basin watersheds, the western side of the San Jacinto Basin is a portion of the Great Basin Divide.
The Sweetwater River is a 55-mile (89 km) long stream in San Diego County, California.
The Scott River is a 60-mile-long (97 km) river in Siskiyou County, California, United States. It is a tributary of the Klamath River, one of the largest rivers in California.
The Middle Fork Feather River is a major river in Plumas and Butte Counties in the U.S. state of California. Nearly 100 miles (160 km) long, it drains about 1,062 square miles (2,750 km2) of the rugged northern Sierra Nevada range.
The Middle Fork Eel River is a major tributary of the Eel River of northwestern California in the United States. It drains a rugged and sparsely populated region of the Yolla Bolly Mountains, part of the California Coast Range, in Trinity and Mendocino Counties. Its watershed comprises roughly 745 square miles (1,930 km2) of land, or 20% of the entire Eel River basin. The river provides groundwater recharge and is used for recreation and for industrial, agricultural and municipal water supply by residents.
Bully Creek is a 62-mile (100 km) long tributary of the Malheur River, located in the U.S. state of Oregon. It drains 601 square miles (1,557 km2) of Malheur County. Arising in the Blue Mountains, it flows generally southeast to its confluence with the Malheur River near Vale.
The North Fork Kings River is a 40.3-mile (64.9 km) tributary of the Kings River, in the U.S. state of California. The river's main stem is entirely within Fresno County, and its watershed drains about 387 square miles (1,000 km2) of the southern Sierra Nevada mountain range.
The Spanish Fork River or Spanish Fork is a river in the U.S. state of Utah. Formed by the confluence of Soldier Creek and Thistle Creek in the Wasatch Range, the river flows about 20 miles (32 km) northwest into Utah Lake, passing the towns of Spanish Fork and Palmyra.
The North Fork Stanislaus River is a 31.2-mile (50.2 km) tributary of the Stanislaus River in the central Sierra Nevada and Stanislaus National Forest of eastern California.
Cow Creek is a tributary of the Sacramento River in Shasta County, California. About 46.9 miles (75.5 km) long measured to its longest source, it drains a hilly, rural region at the northern end of the Sacramento Valley east of Redding. The creek begins at Millville at the confluence of Old Cow and South Cow Creek and flows west to Junction, where it turns south, joining the Sacramento near Anderson. Despite its name, Cow Creek is closer in size to a river, especially in winter when it is prone to large flash floods, accounting for up to 21 percent of the Sacramento's peak flows at Red Bluff.
Willow Creek is a major north-flowing stream in Utah, United States, and is a tributary of the Green River. The creek drains a large remote area of the East Tavaputs Plateau, flowing into the Green River south of Ouray.
Arroyo Grande Creek is a major stream in San Luis Obispo County on the Central Coast of California. The creek flows 22 miles (35 km) in a southwesterly direction, from the Santa Lucia Range to the Pacific Ocean. It is a major source of water supply for southern San Luis Obispo County.
