Climbing route in the context of "Ice climbing"

Climbing is the activity of using one's hands, feet, or other parts of the body to ascend a steep topographical object that can range from the world's tallest mountains (e.g. the eight thousanders) to small boulders. Climbing is done for locomotion, sporting recreation, for competition, and is also done in trades that rely on ascension, such as construction and military operations. Climbing is done indoors and outdoors, on natural surfaces (e.g. rock climbing and ice climbing), and on artificial surfaces (e.g. climbing walls and climbing gyms).

Lead climbing (or leading) is a technique in rock climbing where two climbers work together to ascend a climbing route. The 'lead climber' — who is doing the climbing — clips the rope to pieces of protection as they ascend. The 'second' (or 'belayer') stands at the base of the route controlling the other end of the rope, which is called belaying (e.g. if the 'lead climber' falls, the 'second' locks the rope). The term distinguishes between the two roles and the greater effort and increased risk of the role of the 'lead climber'.

Leading a route is in contrast with the alternative climbing technique of top roping, where even though there is still a 'second' belaying the rope, the 'lead climber' faces no risk in the event of a fall and does not need to clip into any protection as the rope is already anchored to the top of the route (e.g. if they fall they will just hang from the static rope). Leading a climbing route is a core activity in rock climbing, and first ascents (FA) and first free ascents (FFA) of new routes must be done via lead climbing.

In mountaineering and climbing, a first ascent (abbreviated to FA in guide books), is the first successful documented climb to the top of a mountain peak or the top of a particular climbing route. Early 20th-century mountaineers and climbers were mainly focused on reaching the tops of notable mountain peaks (e.g. the eight-thousanders such as Mount Everest) and the tops of iconic climbing routes (e.g. the great north faces of the Alps such as the Eiger) by whatever means possible, and often using considerable amounts of aid climbing and/or with large expedition style support teams allowing them to "lay siege" to the climb.

As all the key tops were summited, the manner or "style" in which each top was reached became important to climbers, and particularly the ability to complete the ascent without the use of any artificial aids, which is called free climbing. In free-climbing, the term first free ascent (abbreviated FFA) denotes where a mountain or climbing route is ascended without any artificial aid — note that equipment for protection in the event of a fall can be used as long as they did not aid in the climber's upward progression. Completing the FFA of a climbing route is often called freeing (or more latterly sending) a route, and is highly coveted.

El Capitan (Spanish: El Capitán; lit. 'the Captain') is a vertical rock formation in Yosemite National Park, on the north side of Yosemite Valley, near its western end. The granite monolith is about 3,000 feet (914 m) from base to summit along its tallest face and is a world-famous location for big wall climbing, including the disciplines of aid climbing, free climbing, and more recently for free solo climbing.

The top of El Capitan can be reached by hiking out of Yosemite Valley on the trail next to Yosemite Falls, then proceeding west. For climbers, the challenge is to climb up the sheer granite face. There are many named climbing routes, all of them arduous, including Iron Hawk and Sea of Dreams.

In mountaineering, the death zone refers to altitudes above which the pressure of oxygen is insufficient to sustain human life for an extended time span. This point is generally considered to be 8,000 m (26,200 ft), where atmospheric pressure is less than 356 millibars (10.5 inHg; 5.16 psi). The concept was conceived in 1953 by Edouard Wyss-Dunant, a Swiss doctor, who called it the lethal zone. All 14 peaks above 8000 m (the "eight-thousanders") in the death zone are located in the Himalaya and Karakoram regions of Asia.

Many deaths in high-altitude mountaineering have been caused by the effects of the death zone, either directly by the loss of vital functions or indirectly by poor decisions made under stress (e.g., not turning back in deteriorating conditions, or misreading the climbing route), or physical weakening leading to accidents (e.g., falls). An extended stay above 8,000 m (26,200 ft) without a high-altitude breathing apparatus (which includes bottled oxygen) will result in deterioration of bodily functions and death.

Expedition climbing (or expedition-style or pejoratively siege climbing) is a type of mountaineering that uses a series of well-stocked camps on the mountain leading to the summit (e.g. Base Camp, Camp 1, Camp 2, etc.), that are supplied by teams of mountain porters. In addition, expedition climbing can also employ multiple 'climbing teams' to work on the climbing route—not all of whom are expected to make the summit—and allows the use of supports such as fixed ropes, aluminum ladders, supplementary oxygen, and sherpa climbers. By its nature, expedition climbing often requires weeks to complete a given climbing route, and months of planning given the greater scale of people and equipment that need to be coordinated for the climb.

'Expedition style' climbing is in direct contrast to 'alpine style' climbing, which involves a single small fast-moving summit climbing team that carries all their supplies and equipment (e.g. no mountain porters or sherpas) and makes little use of support (e.g. no supplementary oxygen or fixed ropes). As a result of having less equipment and supplies, alpine-style teams need to complete their climbing route in days and it is thus considered a riskier form of mountaineering (e.g. if they get trapped in a storm, they have no supplies to wait for the storm to pass). Some argue that this risk is balanced by the fact that alpine-style teams spend less time on the mountain, thus reducing their exposure to other serious risks such as from avalanches and seracs.

Many climbing routes have grades for the technical difficulty, and in some cases for the risks, of the route. The first ascensionist can suggest a grade but it will be amended for the consensus view of subsequent ascents. While many countries with a tradition of climbing developed their own grading systems, a small number of grading systems have become internationally dominant for each type of climbing, and which has led to the standardization of grading worldwide. Over the years, grades have consistently risen in all forms of climbing, helped by improvements in climbing technique and equipment.

In free climbing (i.e. climbing rock routes with no aid), the most popular grading systems are the French numerical or sport system (e.g. 7c+), the American YDS system (e.g. 5.13a), and latterly the UIAA scale (e.g. IX+). These systems grade technical difficulty being the main focus of the lower-risk activity of sport climbing. The American system adds an R/X suffix to traditional climbing routes to reflect the additional risks of climbing protection. Notable traditional climbing systems include the British E-grade system (e.g. E4 6a).

Climbing guidebooks are used by mountaineers, alpinists, ice climbers, and rock climbers to locate, grade, and navigate climbing routes on mountains, climbing crags, or bouldering areas. Modern route guidebooks include detailed information on each climbing route, including topo diagrams, route beta, protection requirements, and the ethics and style that are in place for a given climbing area (e.g. can sport-climbing bolts be used, or must the protection be temporary and removable as with traditional climbing).

Modern climbing guidebooks are increasingly available in digital format, and even as searchable smartphone apps with extensive beta and three-dimensional diagrams of routes and their 'crux' movements. Extensive online opensource climbing databases of routes now exist, however, the publication of hard-wearing physical guidebooks that can be taken on with the climber on the climb is still ongoing given the unique demands of climbing—many guidebook publishers have both a physical and online edition.

In rock climbing, a crack climb is a type of climbing route that follows a system of crack(s) or fissure(s) which the climber uses to ascend the route. The width of the crack dictates the techniques needed, and crack-climbs are further differentiated by the body parts that can be 'jammed' into them, such as finger cracks (the narrowest), hand/fist cracks, arm cracks, and body (also called chimney) cracks. Off-width cracks are some of the most awkward, being too wide for the hands or arms, but too narrow to accommodate the body. A top-to-bottom uniform-width crack is known as a splitter crack.

Crack climbing routes require a broad range of techniques, but most importantly emphasize the techniques of 'laybacking' and of 'jamming'. Laybacking requires the crack to be off-set (i.e. one side protrudes) or in a corner, to create the opposing forces needed for the technique. 'Jamming' is where the climber physically "jams" a body-part(s) into the crack which they then pull on to gain upward momentum. The type of rock has an important effect on the effectiveness of 'jamming', with the high-friction surface of granite being particularly suited to the technique. The friction needed for 'jamming' can wear the climber's skin, requiring medical tape or specialist gloves for long crack routes.