The Little Bear River is a 36.4 miles (58.6 km) tributary

Tributary

A tributary or affluent is a stream or river that flows into a main stem river or a lake. A tributary does not flow directly into a sea or ocean...

 of the Bear River

Bear River (Utah)

The Bear River is a river, approximately long, in southwestern Wyoming, southeastern Idaho, and northern Utah, in the United States. The largest tributary of the Great Salt Lake, it drains a mountainous area and farming valleys northeast of the lake and southeast of the Snake River Plain...

 in northern Utah

Utah

Utah is a state in the Western United States. It was the 45th state to join the Union, on January 4, 1896. Approximately 80% of Utah's 2,763,885 people live along the Wasatch Front, centering on Salt Lake City. This leaves vast expanses of the state nearly uninhabited, making the population the...

 in the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. It rises in the mountains east of Brigham City

Brigham City, Utah

Brigham City is a city in Box Elder County, Utah, United States. The population was 17,899 at the 2010 census. It is the county seat of Box Elder County. It lies on the western slope of the Wellsville Mountains, a branch of the Wasatch Range at the western terminus of Box Elder Canyon...

, where three forks (West, South, and East) join at Avon

Avon, Utah

Avon is a census-designated place in Cache County, Utah, United States. The population was 367 at the 2010 census. It is included in the Logan, Utah-Idaho Metropolitan Statistical Area.-Geography:Avon is located at ....

, then flows north to Paradise

Paradise, Utah

Paradise is a town in Cache County, Utah, United States. The population was 904 at the 2010 census. It is included in the Logan, Utah-Idaho Metropolitan Statistical Area.-Geography:Paradise is located at ....

. At Paradise it spills out into the broad flats of Cache Valley

Cache Valley

The Cache Valley is an agricultural valley of northern Utah and southeast Idaho that includes the Logan metropolitan area. The valley was used by 19th century mountain men and was the site of the 1863 Bear River Massacre.-History:...

, passing north by Hyrum

Hyrum, Utah

As of the census of 2000, there are 6,316 people, 1,683 households, and 1,497 families residing in the city. The population density is 1,617.2 people per square mile . There are 1,744 housing units at an average density of 446.5 per square mile...

, where it is impounded by the Hyrum Reservoir, then meandering generally west by Wellsville

Wellsville, Utah

Wellsville is a city in Cache County, Utah, United States. The population was 3,432 at the 2010 census. It is included in the Logan, Utah-Idaho Metropolitan Statistical Area.-Geography:Wellsville is located at ....

. It meanders north again, receiving the Logan River

Logan River (Utah)

The Logan River is a tributary of the Little Bear River in Utah, the United States. It is currently being studied to determine whether it is suitable for National Wild and Scenic Rivers designation.- Course :...

 in the Cutler Marsh, and eventually draining into the Bear River, although the junction is now submerged by the Cutler Reservoir

Cutler Reservoir

Cutler Reservoir is a reservoir located in Cache Valley in the U.S. state of Utah. It is an impoundment on the Bear River built for irrigation, flood control, and water supply...

.