The Little River is a 7.3 miles (11.7 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 Androscoggin River

Androscoggin River

The Androscoggin River is a river in the U.S. states of Maine and New Hampshire, in northern New England. It is long and joins the Kennebec River at Merrymeeting Bay in Maine before its water empties into the Gulf of Maine on the Atlantic Ocean. Its drainage basin is in area...

 in the U.S. state

U.S. state

A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...

 of Maine

Maine

Maine is a state in the New England region of the northeastern United States, bordered by the Atlantic Ocean to the east and south, New Hampshire to the west, and the Canadian provinces of Quebec to the northwest and New Brunswick to the northeast. Maine is both the northernmost and easternmost...

. It forms the boundary between Sagadahoc

Sagadahoc County, Maine

Sagadahoc County is a county located in the U.S. state of Maine. As of 2010, the population was 35,293. Its county seat is Bath. In total area, it is the smallest county in Maine....

 and Androscoggin

Androscoggin County, Maine

Androscoggin County is a county located in the U.S. state of Maine. As of the 2010 U.S. census, the county's population was 107,702. Its county seat is Auburn...

 counties.

The Little River rises near West Bowdoin at the junction of Fisher Stream and Purington Brook and flows south, joining the Androscoggin River just east of Lisbon Falls

Lisbon Falls, Maine

Lisbon Falls is a census-designated place in the town of Lisbon, located in Androscoggin County, Maine, United States. The population of Lisbon Falls was 4,420 at the 2000 census...

. The river forms the boundary between the town of Lisbon

Lisbon, Maine

Lisbon is a town in Androscoggin County, Maine, United States. The population was 9,077 at the 2000 census. It is included in both the Lewiston-Auburn, Maine metropolitan statistical area and the Lewiston-Auburn, Maine Metropolitan New England city and town area...

 in Androscoggin County to the west and the towns of Bowdoin

Bowdoin, Maine

Bowdoin is a town in Sagadahoc County, Maine, United States. The population was 2,727 at the 2000 census. It is part of the Portland–South Portland–Biddeford, Maine metropolitan statistical area.-History:...

 and Topsham in Sagadahoc County to the east.