Portal:Mountains

A glaciated valley in the Altai Mountains showing the characteristic U shape.

U-shaped valleys, also called trough valleys or glacial troughs, are formed by the process of glaciation. They are characteristic of mountain glaciation in particular. They have a characteristic U shape in cross-section, with steep, straight sides and a flat or rounded bottom (by contrast, valleys carved by rivers tend to be V-shaped in cross-section). Glaciated valleys are formed when a glacier travels across and down a slope, carving the valley by the action of scouring. When the ice recedes or thaws, the valley remains, often littered with small boulders that were transported within the ice, called glacial till or glacial erratic.

Examples of U-shaped valleys are found in mountainous regions throughout the world including the Andes, Alps, Caucasus Mountains, Himalaya, Rocky Mountains, New Zealand and the Scandinavian Mountains. They are found also in other major European mountains including the Carpathian Mountains, the Pyrenees, the Rila and Pirin mountains in Bulgaria, and the Scottish Highlands. A classic glacial trough is in Glacier National Park in Montana, USA in which the St. Mary River runs. Another well-known U-shaped valley is the Nant Ffrancon valley in Snowdonia, Wales. (Full article...)

Location of Aristotle Mountains on the Antarctic Peninsula.

Pippin Peaks () is an east-west line of several Antarctic peaks ranging in height from 880 m to 1,160 m and formed of white or pink granite. The feature is situated in the southern Aristotle Mountains, at the west end of Stubb Glacier where it forms a part of the glacier's north wall, and is connected to Mount Sara Teodora to the west-southwest.

The name is one of several in this area applied by United Kingdom Antarctic Place-Names Committee (UK-APC) from Herman Melville's Moby Dick, Pippin being the shipkeeper in the Pequod who was cast adrift by Stubb. (Full article...)

Geomorphology is a peer-reviewed scientific journal about geomorphology. (Full article...)

Mountaineering: The Freedom of the Hills is often considered the standard textbook for mountaineering and climbing in North America. The book was first published in 1960 by The Mountaineers of Seattle, Washington. The book was written by a team of over 40 experts in the field.

The book grew out of the annual climbing course run since 1935 by the Mountaineers, for which the reading material was originally a combination of European works and lecturers' mimeo outlines. These were assembled into the Climber's Notebook and published by the Mountaineers as the hardbound Mountaineers Handbook in 1948. By 1955 the rapid postwar evolution of climbing techniques and tools had made the Handbook out of date, and the effort was begun to produce Freedom of the Hills. Nearly 80 major contributors are credited in the first edition and were organized by a committee of 8 editors. (Full article...)

Nordic combined is a winter sport in which athletes compete in cross-country skiing and ski jumping. The Nordic combined at the Winter Olympics has been held since the first ever Winter Olympics in 1924, while the FIS Nordic Combined World Cup has been held since 1983. Many Nordic combined competitions use the Gundersen method, where placement in the ski jumping segment results in time (dis)advantages added to the contestant's total in the cross-country skiing segment (e.g. the ski jumping winner starts the cross-country skiing race at 00:00:00 while the one with the lowest jumping score starts with the longest time penalty). (Full article...)

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