Pleasant River is a 4.7 miles (7.6 km) river

River

A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...

 in Oxford County

Oxford County, Maine

Oxford County is a county located in the U.S. state of Maine with a population of 57,833 as of the 2010 U.S. census. Its county seat is Paris.Part of Oxford County is included in the Lewiston-Auburn, Maine, metropolitan New England City and Town Area while a different part of Oxford County is...

, 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...

 in the United States

United States

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

. It is a tributary 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...

, which flows east and south to join the Kennebec River

Kennebec River

The Kennebec River is a river that is entirely within the U.S. state of Maine. It rises in Moosehead Lake in west-central Maine. The East and West Outlets join at Indian Pond and the river then flows southward...

 in Merrymeeting Bay

Merrymeeting Bay

Merrymeeting Bay is a large freshwater tidal bay in Sagadahoc, Lincoln, and Cumberland counties, in the U.S. state of Maine. Merrymeeting Bay's unusual geography defies common landform terms. It is not what is usually meant by the word bay. It is somewhat like an estuary except for being fresh...

 near the Atlantic Ocean

Atlantic Ocean

The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...

.

There are three other rivers in Maine named "Pleasant River", but only one that is a tributary of the Androscoggin River. This Pleasant River has two main tributaries, the West Branch Pleasant River

West Branch Pleasant River (Androscoggin River)

The West Branch Pleasant River is a tributary of the Pleasant River in the U.S. state of Maine. It is part of the Androscoggin River watershed, which flows to the tidal Kennebec River near its mouth at the Atlantic Ocean....

 and the East Branch Pleasant River

East Branch Pleasant River (Androscoggin River)

The East Branch Pleasant River is a tributary of the Pleasant River in the U.S. state of Maine. The Pleasant River is a tributary of the Androscoggin River, which flows southeast to the tidal Kennebec River and the Atlantic Ocean....

. The West Branch flows from headwaters near Haystack Notch in the White Mountain National Forest

White Mountain National Forest

The White Mountain National Forest is a federally-managed forest contained within the White Mountains in the northeastern United States. It was established in 1918 as a result of the Weeks Act of 1911; federal acquisition of land had already begun in 1914. It has a total area of...

. The East Branch flows from headwaters near Farwell Mountain and Peter Mountain, also in the national forest. The two branches flow northward, collecting various small tributaries. They join to form the Pleasant River, which flows north for a few miles before joining the Androscoggin River a few miles west of the town of Bethel

Bethel, Maine

Bethel is a town in Oxford County, Maine, United States. The population was 2,411 at the 2000 census. It includes the villages of West Bethel and South Bethel...

.