Little River is a 57.8 miles (93 km) river in Trigg County

Trigg County, Kentucky

Trigg County is a county located in the U.S. state of Kentucky. It was formed in 1820. As of 2000, the population was 12,597. Its county seat is Cadiz. The county is named for Stephen Trigg, a frontier officer in the American Revolutionary War who died in the Battle of Blue Licks...

, Kentucky

Kentucky

The Commonwealth of Kentucky is a state located in the East Central United States of America. As classified by the United States Census Bureau, Kentucky is a Southern state, more specifically in the East South Central region. Kentucky is one of four U.S. states constituted as a commonwealth...

, 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 Christian County

Christian County, Kentucky

Christian County is a county located in the U.S. state of Kentucky. It was formed in 1797. As of 2000, its population was 72,265. Its county seat is Hopkinsville, Kentucky...

 southwest of Hopkinsville

Hopkinsville, Kentucky

Hopkinsville is a city in Christian County, Kentucky, United States. The population was 31,577 at the 2010 census. It is the county seat of Christian County.- History :...

 and flows northwest past Cadiz

Cadiz, Kentucky

Cadiz is a city in Trigg County, Kentucky, United States. The population was 2,373 at the 2000 census. It is the county seat of Trigg County. It is an old town located close to the Land Between the Lakes, a popular recreation area, and was a base of Union and Confederate operations in the American...

 before emptying into Lake Barkley

Lake Barkley

Lake Barkley, a reservoir in Livingston, Lyon, and Trigg counties in Kentucky and extending into Stewart and Houston counties in Tennessee, was impounded by the U.S. Army Corps of Engineers in 1966 upon the completion of Barkley Dam. Both the lake and the dam are named for Vice President Alben...

. It is a tributary of the Cumberland River

Cumberland River

The Cumberland River is a waterway in the Southern United States. It is long. It starts in Harlan County in far southeastern Kentucky between Pine and Cumberland mountains, flows through southern Kentucky, crosses into northern Tennessee, and then curves back up into western Kentucky before...

 and therefore, via the Ohio River

Ohio River

The Ohio River is the largest tributary, by volume, of the Mississippi River. At the confluence, the Ohio is even bigger than the Mississippi and, thus, is hydrologically the main stream of the whole river system, including the Allegheny River further upstream...

, part of the Mississippi River

Mississippi River

The Mississippi River is the largest river system in North America. Flowing entirely in the United States, this river rises in western Minnesota and meanders slowly southwards for to the Mississippi River Delta at the Gulf of Mexico. With its many tributaries, the Mississippi's watershed drains...

 watershed.

The surrounding region is low rolling hills and farmland. Bedrock consists of limestone

Limestone

Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate . Many limestones are composed from skeletal fragments of marine organisms such as coral or foraminifera....

, and there are numerous springs, caves and bluffs along the river's edge. The stream bed is composed mostly of clay and mud with some bedrock, gravel and limestone boulders.

The mean rate of flow is 765 cuft/s.