High elevations on mountains produce colder climates than at sea level. 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 and recreation, such as mountain climbing.
A conical hill (also cone or conical mountain) is a landform with a distinctly conical shape. It is usually isolated or rises above other surrounding foothills, and is often, but not always, of volcanic origin.
Conical hills or mountains occur in different shapes and are not necessarily geometrically-shaped cones; some are more tower-shaped or have an asymmetric curve on one side. Typically, however, they have a circular base and smooth sides with a gradient of up to 30°. Such conical mountains are found in all volcanically-formed areas of the world such as the Bohemian Central Uplands in the Czech Republic, the Rhön in Germany or the Massif Central in France. Read more...
Mountaineering in the Caucasus, photo from 1989 by Estonian mountaineer Jaan Künnap
Picture of a mountaineer by Josef Feid Anastasius Grün
Sněžka - one of the first European mountains visited by tourists
A packrafter passes a wall of freshly exposed blue ice on Spencer Glacier, in Alaska. Glacial ice acts like a filter on light, and the more time light can spend traveling through ice, the bluer it becomes.
Mountain rescue team members and other services attend to a casualty in Freiburg Germany.
Illustration of mountains that developed on a fold that thrusted.
Glacier as seen by HiRISE under the HiWish program. Area in rectangle is enlarged in the next photo. Zone of accumulation of snow at the top. Glacier is moving down valley, then spreading out on plain. Evidence for flow comes from the many lines on surface. Location is in Protonilus Mensae in Ismenius Lacus quadrangle.
Stretcher box in Cumbria, England, prepositioned equipment saves mountain rescue teams having to trudge up mountains with it.
Enlargement of area in rectangle of the previous image. On Earth the ridge would be called the terminal moraine of an alpine glacier. Picture taken with HiRISE under the HiWish program. Image from Ismenius Lacus quadrangle.
Shear or herring-bone crevasses on Emmons Glacier (Mount Rainier); such crevasses often form near the edge of a glacier where interactions with underlying or marginal rock impede flow. In this case, the impediment appears to be some distance from the near margin of the glacier.
Telemark skiing is a skiing technique that combines elements of Alpine and Nordic skiing. Telemark skiing is named after the Telemark region of Norway, where the discipline originated. Sondre Norheim is often credited for first demonstrating the turn in ski races, which included cross country, slalom and jumping, in Norway around 1868. Sondre Norheim also experimented with ski and binding design, introducing side cuts to skis and heel bindings (like a cable).
Telemark skiing was reborn in 1971 in the United States. Doug Buzzell, Craig Hall, Greg Dalbey, Jack Marcial and Rick Borcovec are credited with reintroducing the style after reading the book Come Ski With Me by Stein Eriksen. Telemark skiing gained popularity during the 1970s and 1980s. The appeal of Telemark skiing lies in access: long pieces of synthetic fabric, known as skins, can be attached to the bottom of the skis to allow travel uphill. With the invention of light-weight alpine touring (A.T.) skis, however, telemark skiing is increasing in popularity. Read more...