Hill chain

A hill chain, sometimes also hill ridge, is an elongated line of hills that usually includes a succession of more or less prominent hilltops, domed summits or kuppen, hill ridges and saddles and which, together with its associated lateral ridges and branches, may form a complex topographic structure. It may occur within a hill range, within an area of low rolling hill country or on a plain. It may link two or more otherwise distinct hill ranges. The transition from a hill chain to a mountain chain is blurred and depends on regional definitions of a hill or mountain. For example, in the UK and Ireland a mountain must officially be 600 m (2,000 ft) or higher,[1][2] whereas in North America mountains are often (unofficially) taken as being 1,000 ft (300 m) high or more.[3]

The Malvern Hills, a hill chain rising from the plain in west-central England

The chain-like arrangement of hills in a chain is a consequence of their collective formation by mountain building forces or ice age earth movements. Hill chains generally have a uniform geological age, but may comprise several types of rock or sediment.

Hill chains normally form a watershed. They are crossed by roads that often use a natural saddle in the terrain.

Examples
gollark: ↑ LyriCLy
gollark: A regular tree structure lets us generate the tessellation C combinatorially.The tessellation will be generated lazily, let G be the set of tiles generated sofar. For every g ∈ G, we keep the following information: its state q(c), and forevery i = 0 . . . Nt − 1, its connection e(g, i), which is either a pointer to anothertile g′ ∈ G and an index i′ (meaning that edge i of g connects to edge i′ of g′)or NULL (meaning that we do not know this connection yet).
gollark: It would be difficult for a server-side thing.
gollark: You can easily embed a "zipped folder" into a document of some kind.
gollark: Oh dear. I have WOEFULLY misunderstood this algorithm.

See also

References
  2. "What is a "Mountain"? Mynydd Graig Goch and all that..." Metric Views. Archived from the original on 30 March 2013. Retrieved 3 February 2013.
  3. "What is the difference between lake and pond; mountain and hill; or river and creek?". USGS. Archived from the original on 9 May 2013. Retrieved 11 February 2013.
  4. Leggiere 2007, p. 122.
  5. Bünz 2008, p. 131.
  6. _ 1940, p. 61.

Literature
  • _ (1940). Proceedings/Geologists' Association. Vol. 51.
  • Bünz, Enno (2008). Ostsiedlung und Landesausbau in Sachsen. Leipzig: LUV.
  • Leggiere, Michael V. (2007). The Fall of Napoleon, Vol. 1. Cambridge: CUP.
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