Mount Cardigan

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Mount Cardigan

Mount Cardigan from the south
Elevation 3,155 feet (962 meters)
Location Orange / Alexandria, New Hampshire, USA
Prominence 1,922 feet (586 meters)
Coordinates 43°38′58″N 71°54′51″W / 43.64944, -71.91417Coordinates: 43°38′58″N 71°54′51″W / 43.64944, -71.91417
Topo map USGS Mount Cardigan Quadrangle
Easiest route West Side Trail

Mount Cardigan is a prominent bare-rock summit in the towns of Orange and Alexandria in western New Hampshire. While its peak is only 3,155 feet (962 meters) above sea level, it has extensive areas of bare granite ledges and alpine scrub, giving it the feel to hikers of a much higher mountain. Most of the summit area was denuded by devastating forest fires in 1855.

Contents

[edit] Geology

The bedrock of Mount Cardigan is comprised of the upper member of the Lower Devonian Littleton Formation (a light grey meta-turbidite) on its west flank (seen on lower parts of the West Ridge Trail). On the summit and to the east on the Clark trail the bedrock is the Kinsman Granodiorite of the Early Devonian Cardigan Pluton (a foliated granitic body with large megacrysts of potassium feldspar).[1] The Cardigan pluton has been dated by the Rb/Sr method at 411 +/- 19 MA.[2] The metamorphic rocks of the Littleton Formation that make up the west flank are at middle amphibolite metamorphic grade. The Littleton Formation rocks were once deep water sediments of the Bronson Hill Island Arc and were deformed and metamorphosed during the Acadian orogeny.

[edit] Hydrology

Mount Cardigan lies on the divide between the Connecticut River and Merrimack River watersheds. The western slopes of the mountain drain to Orange Brook towards the town of Canaan, then via the Indian River to the Mascoma River, the Connecticut River, and ultimately Long Island Sound. The south slopes of the mountain flow via Mill Brook to the Smith River, a tributary of the Pemigewasset and Merrimack rivers, ultimately flowing to the Gulf of Maine. The eastern slopes of Mount Cardigan drain via Brock, Clark, and Davis brooks to the Fowler River, then via Newfound Lake and the Newfound River to the Pemigewasset. Atwell Brook flows off a northeastern ridge of the mountain, draining via the Cockermouth River to Newfound Lake. The farthest north ridge of Cardigan is drained by the South Branch of the Baker River, with water flowing north to the Baker River in Rumney before turning east to reach the Pemigewasset in Plymouth. [3][4]

[edit] External links

[edit] References

  1. ^ Lyons, J.B., Bothner, W., Moench, R., Thompson, J.B., 1997, Bedrock Geology of New Hampshire. Map Sheet.
  2. ^ Lyons and Livingston, 1977
  3. ^ Mount Cardigan, New Hampshire, 7.5-minute topographic map series (1987). Washington: U.S. Geological Survey.
  4. ^ Mt Cardigan, NH. Topozone.com. Retrieved on 2008-04-03.
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