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Portal:Mountains

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Introduction

View of the south side of the Santa Catalina Mountains as seen from Tucson, Arizona.
View of the south side of the Santa Catalina Mountains as seen from Tucson, Arizona.
Mount Everest, Earth's highest 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 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); some scientists consider it to be the tallest on earth. (Full article...)

Miller's Cove in Tennessee is an example of a typical Appalachian cove, an enclosed valley in the mountains.

In the central and southern Appalachian Mountains of Eastern North America, a cove is a small valley between two ridge lines that is closed at one or both ends.

Among the places where the word "cove" appears in the name of an Appalachian valley are Morrison Cove in Pennsylvania; Lost Cove, North Carolina; Bumpass Cove, Tennessee; Doran Cove, Grassy Cove, Ladd Cove, in or adjacent to the Sequatchie Valley of Tennessee and Alabama; and numerous locations in the Great Smoky Mountains, including Cades Cove, Greenbrier Cove, Miller Cove, Tuckaleechee Cove, and Wears Cove. Burke's Garden in western Virginia is another example of a cove. (Full article...)

Selected mountain range

Panorama of the Venediger Group

The High Tauern (pl.; German: Hohe Tauern, Italian: Alti Tauri) are a mountain range on the main chain of the Central Eastern Alps, comprising the highest peaks east of the Brenner Pass. The crest forms the southern border of the Austrian states of Salzburg, Carinthia and East Tyrol, with a small part in the southwest belongs to the Italian province of South Tyrol. The range includes Austria's highest mountain, the Grossglockner at 3,798 metres (12,461 ft) above the Adriatic.

In the east, the range is adjoined by the Lower Tauern. For the etymology of the name, see Tauern. (Full article...)

Selected mountain type

Schematic of the internal structure of a typical cinder cone

A cinder cone (or scoria cone) is a steep conical mountain of loose pyroclastic fragments, such as volcanic clinkers, volcanic ash, or scoria that has been built around a volcanic vent. The pyroclastic fragments are formed by explosive eruptions or lava fountains from a single, typically cylindrical, vent. As the gas-charged lava is blown violently into the air, it breaks into small fragments that solidify and fall as either cinders, clinkers, or scoria around the vent to form a cone that often is symmetrical; with slopes between 30 and 40°; and a nearly circular ground plan. Most cinder cones have a bowl-shaped crater at the summit. (Full article...)

Selected climbing article

The first-generation Grigri

A Grigri (styled as GriGri or GRIGRI) is an assisted braking belay device manufactured by Petzl designed to help secure rock-climbing, rappelling, and rope-acrobatic activities. Its main characteristic is a clutch that assists in braking under a shock load. The success of this device has led to grigri becoming a common name for devices of this type. In 2011 a new version, the Grigri 2, was released to replace the original 1991 model. Petzl released the Grigri+ in 2017, adding new safety features to the original design. However this made the device heavier and many climbers felt the new safety features (specifically the anti panic handle which stopped the device from lowering when the handle was pulled too far back) got in the way of normal operation when lowering. 2019 saw the release of an updated version of the device, simply called the Grigri. It is named for the African amulet gris-gris, believed to protect the wearer from evil. (Full article...)

General images

The following are images from various mountain-related articles on Wikipedia.

Selected skiing article

The International Biathlon Union (IBU; German: Internationale Biathlon-Union) is the international governing body of biathlon. Its headquarters were in Salzburg, Austria, until May 2020, when the Federation moved to Anif, on the outskirts of the city. It was rocked by a corruption scandal that broke in 2018, concerning the Russians bribing its top two officials. In 2022 Russia and Belarus were suspended from all international biathlon competitions until further notice. (Full article...)

Subcategories

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Topics

NASA Landsat-7 imagery of Himalayas
NASA Landsat-7 imagery of Himalayas
Shivling
Shivling
Eruption of Pinatubo 1991

Flora and fauna

Climbing in Greece
Climbing in Greece

Lists of mountains

Recognized content

Associated Wikimedia

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