The Logan River is a 53.7 miles (86.4 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 Little Bear River

Little Bear River

The Little Bear River is a tributary of the Bear River in northern Utah in the United States. It rises in the mountains east of Brigham City, where three forks join at Avon, then flows north to Paradise...

 in 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...

, the United States

United States

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

. It is currently being studied to determine whether it is suitable for National Wild and Scenic Rivers designation.

Course

The Logan River rises in the Bear River Mountains

Bear River Mountains

The Bear River Mountains are located in northeastern Utah and southeastern Idaho. One of the mountains' sinks recorded the lowest temperature in Utah on February 1, 1985, at , which is also the second-lowest temperature ever recorded in the contiguous United States. U.S...

 in Idaho

Idaho

Idaho is a state in the Rocky Mountain area of the United States. The state's largest city and capital is Boise. Residents are called "Idahoans". Idaho was admitted to the Union on July 3, 1890, as the 43rd state....

 and flows south, then southwest through Logan Canyon

Logan Canyon

Logan Canyon is a canyon that cuts its way through the Bear River Mountains, a branch of the Wasatch Range, in northeastern Utah. The canyon is popular for both summer and winter activities, especially rock-climbing, hiking, camping, fishing, snowmobiling, and skiing, at the Beaver Mountain ski...

 and the Wasatch-Cache National Forest

Wasatch-Cache National Forest

Uinta-Wasatch-Cache National Forest is a United States National Forest located primarily in northern Utah , with smaller parts extending into southeastern Idaho and southwestern Wyoming . The name is from the Ute word Wasatch for a low place in high mountains, and the French word Cache meaning to...

 to the city of Logan, Utah

Logan, Utah

-Layout of the City:Logan's city grid originates from its Main and Center Street block, with Main Street running north and south, and Center east and west. Each block north, east, south, or west of the origin accumulates in additions of 100 , though some streets have non-numeric names...

, in the 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:...

. In this valley it joins the Little Bear River a few miles west of Logan and about 5 miles (8 km) south of where the Little Bear River joins 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...

.

The river is dammed at 1st, 2nd, and 3rd dams at the mouth of Logan Canyon

Logan Canyon

Logan Canyon is a canyon that cuts its way through the Bear River Mountains, a branch of the Wasatch Range, in northeastern Utah. The canyon is popular for both summer and winter activities, especially rock-climbing, hiking, camping, fishing, snowmobiling, and skiing, at the Beaver Mountain ski...

.