South Twin Mountain is a

mountain A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher ...

located in

Grafton County Grafton County is a county in the U.S. state of New Hampshire. As of the 2020 census, the population was 91,118. Its county seat is North Haverhill, a village within the town of Haverhill. Until 1972, the county courthouse and other office ...

New Hampshire New Hampshire is a U.S. state, state in the New England region of the northeastern United States. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Gulf of Maine to the east, and the Canadian province of Quebec t ...

. The mountain is part of the

Twin Range The Twin Range is a mountain range within the White Mountains of New Hampshire. Summits Notable peaks within the range include North Twin Mountain, South Twin Mountain, Mount Guyot, Mount Bond, Mount Garfield, Zealand Mountain, and Mou ...

of the White Mountains. South Twin forms the high point of a north-south ridge, with North Twin Mountain lying approximately one mile to the north and Mount Guyot two miles (3 km) to the southeast.

Galehead Mountain Galehead Mountain is a mountain located in Grafton County, New Hampshire. The mountain is part of the Twin Range of the White Mountains. Galehead is flanked to the east by South Twin Mountain, and to the west by Mount Garfield. The summit ...

, a lower spur of South Twin, is to the west. The east face of South Twin drains into the

Little River Little River may refer to several places: Australia Streams New South Wales *Little River (Dubbo), source in the Dubbo region, a tributary of the Macquarie River * Little River (Oberon), source in the Oberon Shire, a tributary of Coxs River (Haw ...

, thence into the Ammonoosuc and

Connecticut River The Connecticut River is the longest river in the New England region of the United States, flowing roughly southward for through four states. It rises 300 yards (270 m) south of the U.S. border with Quebec, Canada, and discharges at Long Islan ...

s, and into

Long Island Sound Long Island Sound is a marine sound and tidal estuary of the Atlantic Ocean. It lies predominantly between the U.S. state of Connecticut to the north and Long Island in New York to the south. From west to east, the sound stretches from the Eas ...

Connecticut Connecticut () is the southernmost state in the New England region of the Northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, New York (state), New York to the west, and Long Island Sound to the ...

. The northwest slopes of South Twin drain to the North Branch of the

Gale River The Gale River is a tributary of the Ammonoosuc River in northwestern New Hampshire in the United States. Via the Ammonoosuc, it is part of the watershed of the Connecticut River, which flows to Long Island Sound. The Gale River flows for its e ...

, another tributary of the Ammonoosuc River. Southwest of South Twin Mountain is the valley of Twin Brook, which flows into the Franconia Branch of the

East Branch of the Pemigewasset River The East Branch of the Pemigewasset River is a river located in the White Mountains of New Hampshire in the United States. It is a tributary of the Pemigewasset River, part of the Merrimack River watershed. The East Branch is a longer and ...

, through the

Pemigewasset Wilderness The Pemigewasset Wilderness is a federally designated National Wilderness Preservation System, Wilderness Area in the heart of New Hampshire's White Mountains (New Hampshire), White Mountains. It is a part of the White Mountain National Forest. I ...

, thence into the Pemigewasset and

Merrimack River The Merrimack River (or Merrimac River, an occasional earlier spelling) is a river in the northeastern United States. It rises at the confluence of the Pemigewasset and Winnipesaukee rivers in Franklin, New Hampshire, flows southward into Mas ...

s, and into the Gulf of Maine in

Massachusetts Massachusetts (Massachusett: ''Muhsachuweesut Massachusett_writing_systems.html" ;"title="nowiki/> məhswatʃəwiːsət.html" ;"title="Massachusett writing systems">məhswatʃəwiːsət">Massachusett writing systems">məhswatʃəwiːsət'' En ...

. The summit of South Twin is open and rocky, but stands of spruce and fir trees grow in close proximity. The

Appalachian Trail The Appalachian Trail (also called the A.T.), is a hiking trail in the Eastern United States, extending almost between Springer Mountain in Georgia and Mount Katahdin in Maine, and passing through 14 states.Gailey, Chris (2006)"Appalachian ...

, a 2,170-mile (3,500-km)

National Scenic Trail The National Trails System is a series of trails in the United States designated "to promote the preservation of, public access to, travel within, and enjoyment and appreciation of the open-air, outdoor areas and historic resources of the Nati ...

from

Georgia Georgia most commonly refers to: * Georgia (country), a country in the Caucasus region of Eurasia * Georgia (U.S. state), a state in the Southeast United States Georgia may also refer to: Places Historical states and entities * Related to the ...

Maine Maine () is a state in the New England and Northeastern regions of the United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Canadian provinces of New Brunswick and Quebec to the northeast and nor ...

, crosses the summit of South Twin, passing from Galehead Mountain (and Galehead Hut) to the west towards Mount Guyot to the southeast. The North Twin Trail proceeds north along the ridge crest to the summit of North Twin. South Twin Mountain from Galehead Mountain

South Twin Mountain from Galehead Mountain

External links

* *
AMC: Hiking South Twin

Mountains of New Hampshire South Twin New England Four-thousand footers Mountains on the Appalachian Trail {{NewHampshire-geo-stub

See also

External links