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[[File:Aiguilles de Peuterey 001.JPG|thumb|The Peuterey Ridge. From left to right [[Aiguille Noire de Peuterey]] (3773 m), ''Brèche-sud'' (3429 m), the ''Dames Anglaises'' (3601 m), ''Brèche-central'', ''L'Isolée'', ''Brèche-nord'' (3491 m), [[Aiguille Blanche de Peuterey]] (4112 m) and ''Col de Peuterey'' (3934 m)]] |
[[File:Aiguilles de Peuterey 001.JPG|thumb|The Peuterey Ridge. From left to right [[Aiguille Noire de Peuterey]] (3773 m), ''Brèche-sud'' (3429 m), the ''Dames Anglaises'' (3601 m), ''Brèche-central'', ''L'Isolée'', ''Brèche-nord'' (3491 m), [[Aiguille Blanche de Peuterey]] (4112 m) and ''Col de Peuterey'' (3934 m)]] |
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In [[geomorphology]], a '''col''' is the lowest point on a mountain [[ridge]] between two [[Summit|peaks]].<ref name="Whittow">Whittow, John (1984). ''Dictionary of Physical Geography''. London: Penguin, 1984, p. 103. {{ISBN|0-14-051094-X}}.</ref> It may also be called a [[Gap (landform)|gap]].<ref name="Whittow"/> Particularly rugged and forbidding cols in the terrain are usually referred to as '''notches'''. They are generally unsuitable as [[mountain pass]]es, but are occasionally crossed by [[mule]] tracks or climbers' routes. The term col tends to be associated more with mountain rather than hill ranges.<ref>Chambers 21st Century Dictionary, Allied.</ref> |
In [[geomorphology]], a '''col''' is the lowest point on a mountain [[ridge]] between two [[Summit|peaks]].<ref name="Whittow">Whittow, John (1984). ''Dictionary of Physical Geography''. London: Penguin, 1984, p. 103. {{ISBN|0-14-051094-X}}.</ref> It may also be called a [[Gap (landform)|gap]].<ref name="Whittow"/> Particularly rugged and forbidding cols in the terrain are usually referred to as '''notches'''. They are generally unsuitable as [[mountain pass]]es, but are occasionally crossed by [[mule]] tracks or climbers' routes. The term col tends to be associated more with mountain rather than hill ranges.<ref>Chambers 21st Century Dictionary, Allied.</ref> It is derived from the French ''col'' ("collar, neck") from [[Latin]] ''collum'', "neck."<ref>[https://www.cnrtl.fr/definition/col “col”], in ''[[Trésor de la langue française informatisé]]'' [Digitized Treasury of the French Language], 2012.</ref> |
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The height of a summit above its highest col (called the [[key col]]) is effectively a measure of a mountain's [[topographic prominence]]. Cols lie on the line of the [[drainage divide|watershed]] between two [[mountain]]s, often on a prominent ridge or [[arête]]. For example, the highest col in Austria, the ''Obere Glocknerscharte'' ("Upper Glockner Col", {{Höhe|3766|AT|link=true}}), lies between the [[Kleinglockner]] ({{Höhe|3783|AT}}) and [[Grossglockner]] ({{Höhe|3798|AT}}) mountains, giving the Kleinglockner a minimum prominence of 17 metres.<ref>Willi End, Hubert Peterka: ''Alpenvereinsführer Glockner- und Granatspitzgruppe'', Bergverlag Rudolf Rother, Munich, 1990. {{ISBN|3-7633-1258-7}} [http://www.rother.de/titpage/1266.php]</ref> |
The height of a summit above its highest col (called the [[key col]]) is effectively a measure of a mountain's [[topographic prominence]]. Cols lie on the line of the [[drainage divide|watershed]] between two [[mountain]]s, often on a prominent ridge or [[arête]]. For example, the highest col in Austria, the ''Obere Glocknerscharte'' ("Upper Glockner Col", {{Höhe|3766|AT|link=true}}), lies between the [[Kleinglockner]] ({{Höhe|3783|AT}}) and [[Grossglockner]] ({{Höhe|3798|AT}}) mountains, giving the Kleinglockner a minimum prominence of 17 metres.<ref>Willi End, Hubert Peterka: ''Alpenvereinsführer Glockner- und Granatspitzgruppe'', Bergverlag Rudolf Rother, Munich, 1990. {{ISBN|3-7633-1258-7}} [http://www.rother.de/titpage/1266.php]</ref> |
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Ingeomorphology, a col is the lowest point on a mountain ridge between two peaks.[1] It may also be called a gap.[1] Particularly rugged and forbidding cols in the terrain are usually referred to as notches. They are generally unsuitable as mountain passes, but are occasionally crossed by mule tracks or climbers' routes. The term col tends to be associated more with mountain rather than hill ranges.[2] It is derived from the French col ("collar, neck") from Latin collum, "neck."[3]
The height of a summit above its highest col (called the key col) is effectively a measure of a mountain's topographic prominence. Cols lie on the line of the watershed between two mountains, often on a prominent ridge or arête. For example, the highest col in Austria, the Obere Glocknerscharte ("Upper Glockner Col", 3,766 m (AA)), lies between the Kleinglockner (3,783 m above sea level (AA)) and Grossglockner (3,798 m above sea level (AA)) mountains, giving the Kleinglockner a minimum prominence of 17 metres.[4]
The majority of cols are unnamed and are either never transited or only crossed in the course of negotiating a ridge line. Many double summits are separated by prominent cols. The distinction with other names for breaks in mountain ridges such as saddle, wind gap or notch is not sharply defined and may vary from place to place.
