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South Twin Mountain

Mountain on North Twin Spur Trail, Twinway Trail, Appalachian Trail in White Mtn. NF, Appalachian Mountains near Twin Mountain Wildlife Center, NH

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South Twin Mountain is a mountain located in Grafton County, New Hampshire. The mountain is part of the Twin Range 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, a lower spur of South Twin, is to the west. The east face of South Twin drains into the Little River, thence into the Ammonoosuc and Connecticut Rivers, and into Long Island Sound in Connecticut. The northwest slopes of South Twin drain to the North Branch of the Gale River, 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,…

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Mountain

Geologic Formation

Granite porphyry (NHJ1hx;0)

Geologic Formation