The Little River is a 10.4 mile

Mile

A mile is a unit of length, most commonly 5,280 feet . The mile of 5,280 feet is sometimes called the statute mile or land mile to distinguish it from the nautical mile...

 long (16.7 km

KM

KM, Km, or km may stand for:*Kilometre *Kernel methods*Kettle Moraine High School*Khmer language *Kuomintang , a centre-right political party in the Republic of China on Taiwan...

) 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...

 located in southeastern 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

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 Lamprey River

Lamprey River

The Lamprey River is a 50.2 mile long river in southeastern New Hampshire, the United States. It rises in Meadow Lake in Northwood, and flows south, then generally east past Raymond, Epping, Lee and finally Newmarket...

, part of the Great Bay

Great Bay (New Hampshire)

Great Bay is a tidal estuary located in Strafford and Rockingham counties in eastern New Hampshire, United States. The bay occupies over , not including its several tidal river tributaries. Its outlet is at Hilton Point in Dover, New Hampshire, where waters from the bay flow into the Piscataqua...

 and Piscataqua River

Piscataqua River

The Piscataqua River, in the northeastern United States, is a long tidal estuary formed by the confluence of the Salmon Falls and Cocheco rivers...

 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...

 leading to 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 river rises in Barrington, New Hampshire

Barrington, New Hampshire

Barrington is a town in Strafford County, New Hampshire, United States. The population was 8,576 at the 2010 census. The town is a woodland, farm and bedroom community.-History:...

 as a tributary of Mendums Pond

Mendums Pond

Mendum's Pond is a water body located primarily in Strafford County in eastern New Hampshire, United States, in the town of Barrington. Its extreme southern end dips into the town of Nottingham in Rockingham County...

. Upon leaving Mendums Pond, the river enters Nottingham

Nottingham, New Hampshire

Nottingham is a town in Rockingham County, New Hampshire, United States. The population was 4,785 at the 2010 census. It is the location of Pawtuckaway State Park.-History:...

, flowing south through Nottingham Lake and then east, where it joins the Lamprey River near the town center of Lee

Lee, New Hampshire

Lee is a town in Strafford County, New Hampshire, United States. The population was 4,330 at the 2010 census. The town is a rural farm and bedroom community, being close to the University of New Hampshire.-History:...

.