Portal:Mountains
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Introduction
![](http://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Everest_North_Face_toward_Base_Camp_Tibet_Luca_Galuzzi_2006.jpg/330px-Everest_North_Face_toward_Base_Camp_Tibet_Luca_Galuzzi_2006.jpg)
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 higher than a hill, typically rising at least 300 metres (980 ft) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges.
Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers.
High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain and climate, mountains tend to be used less for agriculture and more for resource extraction, such as mining and logging, along with recreation, such as mountain climbing and skiing.
The highest mountain on Earth is Mount Everest in the Himalayas of Asia, whose summit is 8,850 m (29,035 ft) above mean sea level. The highest known mountain on any planet in the Solar System is Olympus Mons on Mars at 21,171 m (69,459 ft). The tallest mountain including submarine terrain is Mauna Kea in Hawaii from its underwater base at 9,330 m (30,610 ft) and some scientists consider it to be the tallest on earth. (Full article...)
Selected mountain-related landform
![](http://upload.wikimedia.org/wikipedia/commons/thumb/f/fd/PotholeLakes.Siberia.L7.20010910.jpg/300px-PotholeLakes.Siberia.L7.20010910.jpg)
A kettle (also known as a kettle hole, kettlehole, or pothole) is a depression or hole in an outwash plain formed by retreating glaciers or draining floodwaters. The kettles are formed as a result of blocks of dead ice left behind by retreating glaciers, which become surrounded by sediment deposited by meltwater streams as there is increased friction. The ice becomes buried in the sediment and when the ice melts, a depression is left called a kettle hole, creating a dimpled appearance on the outwash plain. Lakes often fill these kettles; these are called kettle hole lakes. Another source is the sudden drainage of an ice-dammed lake and when the block melts, the hole it leaves behind is a kettle. As the ice melts, ramparts can form around the edge of the kettle hole. The lakes that fill these holes are seldom more than 10 m (33 ft) deep and eventually fill with sediment. In acidic conditions, a kettle bog may form but in alkaline conditions, it will be kettle peatland. (Full article...)
Selected mountain range
The Franconia Range is a mountain range located in the White Mountains of the U.S. state of New Hampshire. It is the second-highest range of peaks (after the Presidential Range) in the White Mountains.
Franconia Ridge is a prominent ridge which forms the backbone of the range, stringing together all of its major summits. (Full article...)
Selected mountain type
![](http://upload.wikimedia.org/wikipedia/commons/thumb/1/16/East_Rock_from_SSS_Hall%2C_October_17%2C_2008.jpg/220px-East_Rock_from_SSS_Hall%2C_October_17%2C_2008.jpg)
Trap rock, also known as either trapp or trap, is any dark-colored, fine-grained, non-granitic intrusive or extrusive igneous rock. Types of trap rock include basalt, peridotite, diabase, and gabbro. Trap is also used to refer to flood (plateau) basalts, such as the Deccan Traps and Siberian Traps. The erosion of trap rock created by the stacking of successive lava flows often creates a distinct stairstep landscape from which the term trap was derived from the Swedish word trappa, which means "stairway".
The slow cooling of magma either as a sill or as a thick lava flow sometimes creates systematic vertical fractures within the resulting layer of trap rock. These fractures often form rock columns that are typically hexagonal, but also four- to eight-sided. (Full article...)
Selected climbing article
![](http://upload.wikimedia.org/wikipedia/commons/thumb/6/62/Petzl_Ascenders_%28On_Rope%29.jpg/220px-Petzl_Ascenders_%28On_Rope%29.jpg)
An ascender is a device (usually mechanical) used for directly ascending, or for facilitating protection, with a fixed rope when climbing on steep mountain terrain. A form introduced in the 1950's became so popular it began the term "Jumar" for the device, and the verb "to jumar" to describe its use in ascending.
Ascenders can also be used as a braking component within a rope-hauling system, often used in rescue situations. (Full article...)
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General images
Selected skiing article
Windburn is a condition whereby a sunburn obtained in cool or cloudy conditions is incorrectly attributed to the effects of the wind rather than the sun, mostly in North America. The main reason is that in cool or cloudy conditions many people are unaware that they are still vulnerable to the burning effects of the sun's UV radiation, so fail to take precautionary sun protection measures.
The fact that windburn was really misattributed sunburn, rather than a distinct condition, was shown as early as 1936 by English skin specialist Charles Howard White of Cambridge and American physicist William Henry Crew of New York University. Nonetheless, the accepted existence of windburn remains a widely held misconception. (Full article...)
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Topics
![NASA Landsat-7 imagery of Himalayas](http://upload.wikimedia.org/wikipedia/commons/thumb/2/25/Himalayas_landsat_7.png/180px-Himalayas_landsat_7.png)
- Africa: Atlas • Kilimanjaro • Mount Kenya massif • Ruwenzori Mountains
- America: Andes • Appalachians • Cascades • Cordilleras • Rockies • Sierra Nevada
- Antarctica: Sentinel Range
- Asia: Altai • Himalaya • Hindu Kush • Caucasus • Karakoram • Pamir
- Australia and Oceania: Maoke Mountains • New Zealand Alps • Snowy Mountains
- Europe: Alps • Ardennes • Balkans • Highlands • Jura • Carpathians • Pyrenees • Scandinavian Mountains • Urals • Vosges
![Shivling](http://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Shivling.jpg/180px-Shivling.jpg)
- Alps: Piz Badile • Mont Blanc • Petit Dru • Dufourspitze • Eiger • Großglockner • Grandes Jorasses • Jungfrau • Königspitze • Matterhorn • Mönch • Ortler • Watzmann • Drei Zinnen • Zugspitze
- Andes: Aconcagua • Alpamayo • Chimborazo • Cotopaxi • Fitz Roy • Nevado Huascarán • Illimani • Sajama • Ojos del Salado • Siula Grande • Cerro Torre • Yerupaja
- Himalayas: Eight-thousanders – Mount Everest • K2 • Kangchenjunga • Lhotse • Makalu • Cho Oyu • Dhaulagiri • Manaslu • Nanga Parbat • Annapurna I • Hidden Peak • Broad Peak • Gasherbrum II • Shishapangma – Other – Ama Dablam • Chogolisa • Masherbrum • Shivling
- Rocky Mountains: Mount Chephren • Mount Elbert • Mount Logan • Denali • Mount Robson
- Volcanos: Etna • Eldfell • Hohentwiel • Mauna Kea • Pinatubo • Puʻu ʻŌʻō • Mount St. Helens • Stromboli • Mount Unzen
Flora and fauna
![Ibex](http://upload.wikimedia.org/wikipedia/commons/thumb/b/be/Steinbock_2006_08_2.jpg/180px-Steinbock_2006_08_2.jpg)
- Plants: Alpine Rock-Jasmine • Hairy Alpenrose • Edelweiss • Great Yellow Gentian • Glacier Crowfoot • Wulfenia • Dwarf Willow • Queen of the Andes • Arolla Pine
- Animals: Red-billed Chough • Alpine marmot • Alpine Salamander • Rock Ptarmigan • Alpine Ibex • Andean Condor • Bearded Vulture • Alpine Chough • Chamois • Mountain Burnet • European Viper • Himalayan Tahr • Wallcreeper • White-winged Snowfinch • Golden Eagle • Northern Bald Ibis • Yak
![Climbing in Greece](http://upload.wikimedia.org/wikipedia/commons/thumb/7/70/Kalymnos_2005_022.jpg/180px-Kalymnos_2005_022.jpg)
- Equipment: Ascenders • Belay devices • Carabiners • Maillons • Harnesses • Hexes • Nuts • Quickdraws • Ropes • Shoes • SLCDs • Slings • Tricams
- Techniques: Abseiling • Redpointing • Anchor • Mantle • Top roping • Climbing grade • Climbing route
- Types of climbing: Big wall climbing • Bouldering • Competition climbing • Free climbing • Ice climbing • Mountain climbing • Rock climbing • Schrofen • Sport climbing
- Klettersteigs: Mannlgrat
- Climbers: Kurt Albert • Pierre Allain •John Bachar • Henry Barber • Catherine Destivelle • Patrick Edlinger • John Gill • Stefan Glowacz • Wolfgang Güllich • Lynn Hill • Alex Honnold • Alexander Huber • John Long • Jeff Lowe • Magnus Midtbø • Adam Ondra • Dean Potter • Alain Robert • Chris Sharma • Todd Skinner • Ueli Steck • Other climbers
![](http://upload.wikimedia.org/wikipedia/commons/thumb/3/37/Georg_Winkler.jpg/180px-Georg_Winkler.jpg)
- Mountaineering: Alpine Clubs • Boots • Crampons • Ice axes • Mountain huts • Mountain rescue • Ropes • Rucksacks
- Pioneers: Christian Almer • Melchior Anderegg • Hermann von Barth • Walter Bonatti • Meta Brevoort • William Martin Conway • Angelo Dibona • Hans Dülfer • Paul Grohmann • Adolphus Warburton Moore • Paul Preuss • Ludwig Purtscheller • Schlagintweit brothers • Leslie Stephen • Gottlieb Samuel Studer • Tenzig Norgay • Herbert Tichy • Lucy Walker • Edward Whymper • Georg Winkler • Matthias Zurbriggen
- High-altitude mountaineers: Chris Bonington • Hermann Buhl • Kurt Diemberger • Ralf Dujmovits • Günther Dyhrenfurth • Maurice Herzog • Sir Edmund Hillary • Sandy Irvine • Gerlinde Kaltenbrunner • George Mallory • Nives Meroi • Reinhold Messner • Simone Moro • Oh Eun-sun • Edurne Pasaban • Wanda Rutkiewicz • Lionel Terray • Um Hong-Gil • Stephen Venables • Ed Viesturs • Other mountaineers
- Publicists: Karl Blodig • W. A. B. Coolidge • David Breashears • Jon Krakauer • Gaston Rébuffat
- Alps: Eiger climbing history • Exploration of the High Alps • Golden age of alpinism • Silver age of alpinism • Timeline of climbing the Matterhorn
- Himalayas: 1922 British Mount Everest expedition • 1924 British Mount Everest expedition • 1953 British Mount Everest expedition • 1986 K2 disaster • 1996 Mount Everest disaster • 2008 K2 disaster • Timeline of climbing Mount Everest
- Museums: Alpine Club Museum • Messner Mountain Museum
Lists of mountains
Recognized content
- Featured content
- Good content
Amak Volcano
Ben Nevis
Gerlachovský štít
Glacier Peak
Hualālai
Huangshan
Kohala (mountain)
Mont Aiguille
Mont Blanc massif
Montpelier Hill
Mount Adams (Washington)
Mount Bailey (Oregon)
Mount Baker
Mount Cleveland (Alaska)
Mount Edziza volcanic complex
Mount Elbert
Mount Garibaldi
Mount Hood
Mount Kenya
Mount Rainier
Mount Redoubt
Mount Tehama
Mount Thielsen
Mount Vesuvius
Pinkham Notch
Roxy Ann Peak
Silverthrone Caldera
Snowdon
Wells Gray-Clearwater volcanic field
Wilkins Peak
Yamsay Mountain
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