Clear Stream is an 11.8 mile long (19.0 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 northern New Hampshire

New Hampshire

New Hampshire is a state in the New England region of the northeastern United States of America. The state was named after the southern English county of Hampshire. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Atlantic Ocean to the east, and the Canadian...

 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 south and east into 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...

, joining 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...

 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...

.

Clear Stream flows out of Dixville Notch, a dramatic gap through the mountains of northern New Hampshire. The stream is formed by the juncture of Cascade Brook and Flume Brook. The stream flows southeast through the townships of Dixville

Dixville, New Hampshire

Dixville is a township in Coos County, New Hampshire, United States. In New Hampshire, locations, grants, townships , and purchases are unincorporated portions of a county which are not part of any town and have limited self-government .The population was 12 at the 2010 census...

 and Millsfield

Millsfield, New Hampshire

Millsfield is a township in Coos County, New Hampshire, United States. It is part of the Berlin, NH–VT Micropolitan Statistical Area. The population was 23 at the 2010 census....

 before joining 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 town of Errol

Errol, New Hampshire

Errol is a town in Coos County, New Hampshire, United States. The population was 291 at the 2010 census. It is located north of the White Mountains along Route 16 at the intersection of Route 26...

. New Hampshire Route 26 follows the stream for its entire length.