Glissading is the act of descending a steep snow- or scree-covered slope via a controlled slide on one's feet or buttocks. It is an alternative to other descent methods such as plunge stepping, and may be used to expedite a descent, or simply for the thrill. Glissading involves higher risks of injuries than other forms of descending.   Glissading with crampons is especially dangerous and should never be attempted.  
There are three primary methods of glissading:
This is the easiest type of glissade and generally provides the greatest amount of stability. It is also less tiring than a standing or crouching glissade in softer snow. To perform a sitting glissade one sits down and slides on the slope usually holding on to an ice axe in a self-arrest position, especially when the run-out of the slope is in question.
The major drawbacks to the sitting glissade are that one's outer layers get wet, and that there is less control than in a standing glissade.
The standing glissade is often the preferred method if the person glissading is skilled in doing so and snow conditions allow. In this glissading position one has a better view of route hazards, and increased maneuverability over a sitting glissade. In addition a standing glissade cuts down the wet and abrasive forces of the sitting glissade. The standing glissade is best performed over firm snow with a soft top layer.
The crouching glissade is similar to the standing method except the climber sits back and drags the spike of their ice axe (held in self-arrest grip) in the snow. The method is slower but more controlled than the standing glissade. A disadvantage to this technique is the tiring of the legs.
Mountaineering or alpinism, is a set of outdoor activities that involves ascending tall mountains. Mountaineering-related activities include traditional outdoor climbing, skiing, and traversing via ferratas. Indoor climbing, sport climbing, and bouldering are also considered variants of mountaineering by some.
An avalanche is a rapid flow of snow down a slope, such as a hill or mountain.
Snowshoes are specialized outdoor gear for walking over snow. Their large footprint spreads the user's weight out and allows them to travel largely on top of rather than through snow. Adjustable bindings attach them to appropriate winter footwear.
Scrambling is a mountaineering term for ascending steep terrain using one's hands to assist in holds and balance. It is also used to describe terrain that falls between hiking and rock climbing.
Jim Wickwire is the first American to summit K2, the second highest mountain in the world. Wickwire is also known for surviving an overnight solo bivouac on K2 at an elevation above 27,000 ft or 8,200 m; considered "one of the most notorious bivouacs in mountaineering history".
An ice axe is a multi-purpose hiking and climbing tool used by mountaineers in both the ascent and descent of routes that involve snow, ice, or frozen conditions. Its use depends on the terrain: in its simplest role it is used like a walking stick, with the mountaineer holding the head in the center of their uphill hand. On steep terrain it is swung by its handle and embedded in snow or ice for security and an aid to traction. It can also be buried pick down, the rope tied around the shaft to form a secure anchor on which to bring up a second climber, or buried vertically to form a stomp belay. The adze is used to cut footholds, as well as scoop out compacted snow to bury the axe as a belay anchor.
This glossary of climbing terms is a list of definitions of terms and jargon related to rock climbing and mountaineering. The specific terms used can vary considerably between different English-speaking countries; many of the phrases described here are particular to the United States and the United Kingdom.
Ice climbing is the activity of ascending inclined ice formations. Usually, ice climbing refers to roped and protected climbing of features such as icefalls, frozen waterfalls, and cliffs and rock slabs covered with ice refrozen from flows of water.
A wide range of equipment is used during rock or any other type of climbing that includes equipment commonly used to protect a climber against the consequences of a fall.
Abseiling, also known as rappelling, is the controlled descent of a steep slope, such as a rock face, by moving down a rope. When abseiling the person descending controls their own movement down the rope, in contrast to lowering off in which the rope attached to the person descending is paid out by their belayer.
Ski mountaineering is a skiing discipline that involves climbing mountains either on skis or carrying them, depending on the steepness of the ascent, and then descending on skis. There are two major categories of equipment used, free-heel Telemark skis and skis based on Alpine skis, where the heel is free for ascents, but is fixed during descent. The discipline may be practiced recreationally or as a competitive sport.
Borah Peak, also known as Mount Borah or Beauty Peak, is the highest mountain in the U.S. state of Idaho and one of the most prominent peaks in the contiguous United States. It is located in the central section of the Lost River Range, within the Challis National Forest in eastern Custer County. On February 11, 2021, the USGS officially recognized Mt. Borah as Idaho's only active glacier.
Dry-tooling is a form of rock climbing in which ice axes are used to climb rock that is not covered in snow or ice. It has its origins in mixed climbing, ice climbing and more recently sport climbing. Dry tooling is controversial among many climbers. Some favour it as a new and exciting kind of climbing, while others dislike it for its nontraditional methods and the permanent damage it can cause to certain, generally softer, rock formations.
Andrew Comyn "Sandy" Irvine was an English mountaineer who took part in the 1924 British Everest Expedition, the third British expedition to the world's highest mountain, Mount Everest.
Backpacking is the outdoor recreation of carrying gear on one's back, while hiking for more than a day. It is often an extended journey, and may involve camping outdoors. In North America tenting is common, where simple shelters and mountain huts, widely found in Europe, are rare. In New Zealand, hiking is called tramping and tents are used alongside a nationwide network of huts. Hill walking is an equivalent in Britain, though backpackers make use of a variety of accommodation, in addition to camping. Backpackers use simple huts in South Africa. Trekking and bushwalking are other words used to describe such multi-day trips.
Aquaplaning or hydroplaning by the tires of a road vehicle, aircraft or other wheeled vehicle occurs when a layer of water builds between the wheels of the vehicle and the road surface, leading to a loss of traction that prevents the vehicle from responding to control inputs. If it occurs to all wheels simultaneously, the vehicle becomes, in effect, an uncontrolled sled. Aquaplaning is a different phenomenon from when water on the surface of the roadway merely acts as a lubricant. Traction is diminished on wet pavement even when aquaplaning is not occurring.
Outdoor recreation, such as hiking, camping, canoeing, cycling, or skiing, entails risks, even if participants do not recklessly place themselves in harm's way. In some circumstances, such as being in remote locations or in extreme weather conditions, even a minor accident may create a dangerous situation that requires survival skills. However, with correct precautions, even fairly adventurous outdoor recreation can be enjoyable and safe.
Mount Wilson is the highest summit of the San Miguel Mountains range of the Rocky Mountains of North America. The prominent 14,252-foot (4,344 m) fourteener is located in the Lizard Head Wilderness of San Juan National Forest, 10.6 miles (17.1 km) north by east of the Town of Rico in Dolores County, Colorado, United States. Mount Wilson should not to be confused with the lower Wilson Peak nearby.
There exist a number of climbing routes used to reach the summit of the Mount Elbrus, most based in approaches through Prielbrusye National Park on its southeastern flank.
Émile Rey was an alpine mountain guide from Aosta Valley in Italy. Dubbed "the Prince of Guides" in Courmayeur, he was one of the most renowned guides at the end of the 19th century, making many first ascents on some of the highest and most difficult mountains in the Mont Blanc massif of the Alps. He has been described as "one of the greatest guides of his generation."