Mount Shaw 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 highe ...

located in the towns of Moultonborough and Tuftonboro in Carroll County,

New Hampshire New Hampshire is a 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 to the nor ...

, United States. It is part of the remains of an ancient volcanic

ring dike A ring dike or ring dyke is an intrusive igneous body that is circular, oval or arcuate in plan and has steep contacts. While the widths of ring dikes differ, they can be up to several thousand meters. The most commonly accepted method of ring dik ...

. With a summit elevation of , it is the highest of the Ossipee Mountains. The Ossipee ring-dike complex of central New Hampshire is a visible remnant of a 125 million year old

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of ...

stratovolcano, a member of the later White Mountain

igneous Igneous rock (derived from the Latin word ''ignis'' meaning fire), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or ...

province. The complex is circular as viewed on maps and has a diameter of . The ring-dike complex is easy to identify within web-browsed satellite images, with its southeast edge located about northwest of the town center of

Ossipee Ossipee is a town in Carroll County, New Hampshire, United States. The population was 4,372 at the 2020 census. It is the county seat of Carroll County. Ossipee, which includes several villages, is a resort area and home to part of Pine River S ...

. Although of only moderate elevation, the topographic isolation of the Ossipee Mountains gives Shaw of

prominence In topography, prominence (also referred to as autonomous height, relative height, and shoulder drop in US English, and drop or relative height in British English) measures the height of a mountain or hill's summit relative to the lowest contou ...

above the low ground separating it from the nearby Sandwich Range, the southernmost peaks of the White Mountains, making it one of twelve peaks in New Hampshire with a prominence over . Mount Shaw is located within the Castle in the Clouds estate. Its north and southeast sides drain into the Lovell and Dan Hole rivers, thence into the

Ossipee River The Ossipee River is an U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed June 30, 2011 river in eastern New Hampshire and western Maine in the United States. It is a tributary of the Saco ...

Saco River The Saco River (Abenaki: ''Sαkóhki'') is a river in northeastern New Hampshire and southwestern Maine in the United States. It drains a rural area of of forests and farmlands west and southwest of Portland, emptying into the Atlantic Ocean ...

and the

Gulf of Maine , image = , alt = , caption = , image_bathymetry = GulfofMaine2.jpg , alt_bathymetry = , caption_bathymetry = Major features of the Gulf of Maine , location = Northeast coast of the ...

. The southwest side drains into the Melvin River which flows into

Lake Winnipesaukee Lake Winnipesaukee () is the largest lake in the U.S. state of New Hampshire, located in the Lakes Region at the foothills of the White Mountains. It is approximately long (northwest-southeast) and from wide (northeast-southwest), covering & ...

, thence into the

Winnipesaukee River The Winnipesaukee River is a river that connects Lake Winnipesaukee with the Pemigewasset and Merrimack rivers in Franklin, New Hampshire. The river is in the Lakes Region of central New Hampshire. The river's drainage area is approximately . ...

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 M ...

, 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 ...

References

External links

*
"Mt. Shaw"
FranklinSites.com Hiking Guide Mountains of New Hampshire Mountains of Carroll County, New Hampshire {{NewHampshire-geo-stub

See also

References

External links