The Wild Ammonoosuc River is a 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 Ammonoosuc River

Ammonoosuc River

The Ammonoosuc River is a river, 55 mi long, in northwestern New Hampshire in the United States. It is a tributary of the Connecticut River, which flows to Long Island Sound. "Ammonoosuc" is Abnaki for "small, narrow fishing place"....

, about 15 miles (24.1 km) long, in northwestern 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...

. Via the Ammonoosuc River, it is part of the watershed

Drainage basin

A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean...

 of the Connecticut River

Connecticut River

The Connecticut River is the largest and longest river in New England, and also an American Heritage River. It flows roughly south, starting from the Fourth Connecticut Lake in New Hampshire. After flowing through the remaining Connecticut Lakes and Lake Francis, it defines the border between the...

, which flows to Long Island Sound

Long Island Sound

Long Island Sound is an estuary of the Atlantic Ocean, located in the United States between Connecticut to the north and Long Island, New York to the south. The mouth of the Connecticut River at Old Saybrook, Connecticut, empties into the sound. On its western end the sound is bounded by the Bronx...

.

The Wild Ammonoosuc flows for its entire length in Grafton County

Grafton County, New Hampshire

Grafton County is a county located in the U.S. state of New Hampshire. As of the 2010 census, the population was 89,118. Its county seat is North Haverhill, which is a village within the town of Haverhill. Until 1972, the county courthouse and other offices were located in downtown Woodsville, a...

. It rises in the White Mountains

White Mountains (New Hampshire)

The White Mountains are a mountain range covering about a quarter of the state of New Hampshire and a small portion of western Maine in the United States. Part of the Appalachian Mountains, they are considered the most rugged mountains in New England...

 at Kinsman Notch

Kinsman Notch

Kinsman Notch is a mountain pass located in the White Mountains of New Hampshire, United States. It is the westernmost of the major notches through the White Mountains...

 in the town of Woodstock

Woodstock, New Hampshire

Woodstock is a town in Grafton County, New Hampshire, United States. The population was 1,374 at the 2010 census. Woodstock includes the village of North Woodstock, the commercial center. Its extensive land area is largely forested, and includes the Hubbard Brook Experimental Forest. Parts of the...

 and flows generally northwestwardly through the towns of Easton

Easton, New Hampshire

Easton is a town in Grafton County, New Hampshire, United States. The population was 254 at the 2010 census.- History :Formed from a part of Landaff known as Eastern Landaff, Easton was incorporated in 1876....

 and Landaff

Landaff, New Hampshire

Landaff is a town in Grafton County, New Hampshire, United States. As of the 2010 census, the town population was 415.- History :The name on the town charter is Llandaff, after the Bishop of Llandaff, chaplain to England's King George III. Originally, however, the land was granted as Whitcherville...

 to Bath

Bath, New Hampshire

Bath is a town in Grafton County, New Hampshire, United States. The population was 1,077 at the 2010 census. Now a tourist destination and bedroom community for Littleton, the town is noted for its historic architecture, including the Brick Store and three covered bridges...

, where it joins the Ammonoosuc.