The Moose River is an 11.7 miles (18.8 km) long stream 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...

.

The Moose River rises in the town of Randolph, New Hampshire

Randolph, New Hampshire

Randolph is a heavily forested town in Coos County, New Hampshire, U.S., extending from the northern slopes of the White Mountains of the Presidential Range to Berlin , with U.S. Route 2 cutting through the middle...

, on the northern slopes of Mount Adams

Mount Adams (New Hampshire)

Mount Adams, elevation above sea level, is a mountain in New Hampshire, the second highest peak in the Northeast United States after its nearby neighbor, Mt. Washington. Located in the northern Presidential Range, Mount Adams was named after John Adams, the second president of the United States....

. The river quickly enters the wide valley between the Presidential Range

Presidential Range

The Presidential Range is a mountain range located in the White Mountains of the U.S. state of New Hampshire. Containing the highest peaks of the Whites, its most notable summits are named for American Presidents, followed by prominent public figures of the 18th and 19th centuries.Mt...

 to the south and the Crescent Mountain Range to the north and turns east to flow to the Androscoggin River in Gorham

Gorham, New Hampshire

Gorham is a town in Coos County, New Hampshire, United States. The population was 2,848 at the 2010 census. Gorham is located in the White Mountains, and parts of the White Mountain National Forest are in the south and northwest. Moose Brook State Park is in the west. The town is crossed by the...

. An inactive railroad owned by the State of New Hampshire parallels the Moose River for most of the river's length.