Sport Climbing

Bowline: Definition, Uses, and Cautions in Climbing

The bowline is a knot that forms a fixed loop at the end of a rope, used in climbing and elsewhere to tie around objects or, in some variations, as a tie-in to the harness. Its key advantage is that it remains relatively easy to untie even after being heavily loaded (unlike the figure-eight), but a basic bowline can shake loose if not properly dressed and backed up, so climbers who use it for tying in use a secured variation and always back it up.

Climbing Knots: The Essential Knots and What They Do

Climbing knots are the knots, bends, and hitches that hold the climbing safety system together — tying climbers into the rope, joining ropes, building and attaching to anchors, rappelling, ascending, and performing rescue. Each has a specific purpose and strengths, and using the right, correctly tied knot is life-critical. Core examples include the figure-eight follow-through (tie-in), clove hitch and figure-eight on a bight (anchors), double fisherman's (joining), and prusik (friction).

Back-Clip: Definition, Why It’s Dangerous, and How to Avoid It

Back-clipping is a dangerous lead-climbing error in which the rope is clipped through a quickdraw the wrong way, so the climber's (load) strand runs up behind the carabiner rather than out the front. In a fall, the rope can press across the gate, force it open, and unclip itself from the carabiner — potentially leading to a catastrophic fall. Recognizing and correcting back-clips is a fundamental lead-climbing safety skill.

Active Protection: Definition and How Camming Devices Work

Active protection is climbing protection with moving parts — primarily spring-loaded camming devices (SLCDs, or 'cams') — that hold a fall by expanding against the walls of a crack, converting downward load into outward gripping force. Unlike passive protection, active pro works in parallel-sided cracks and a range of widths, and is quick to place, making cams a cornerstone of modern trad climbing. The trade-offs are higher cost, weight, and moving parts that need care.

Passive Protection: Definition and How It Works

Passive protection is traditional climbing protection that has no moving parts, holding a fall by being wedged or slotted into a constriction in a crack so the rock itself locks it in place. Nuts (wedges/stoppers), hexes, and tricams (in passive placements) are examples. Compared to active protection (camming devices), passive pro is lighter, cheaper, simpler, and very reliable when well placed — but it requires a suitable constriction and more skill to place quickly.

Fall Factor: Definition, How It’s Calculated, and Why It Matters

Fall factor is a measure of the severity of a climbing fall, calculated as the distance fallen divided by the length of rope available to absorb the fall. It ranges from 0 to about 2, with higher numbers meaning a more severe fall that generates greater force on the climber, gear, and anchor. Because it's the ratio (not just the distance), a short fall onto little rope can be more severe than a long fall onto lots of rope — and a factor-2 fall directly onto the anchor is the most serious.

Equalization: How Climbing Anchors Share the Load

Equalization is the principle of building a climbing anchor so that the load is distributed across its multiple points of protection, with each piece sharing the force rather than one bearing it all. Equalizing an anchor increases its overall strength and security and provides redundancy if a piece fails. Achieved with slings, cordelettes, or specific rigging, equalization is one of the core principles of sound anchor building (the 'E' in SERENE/ERNEST).

Anchor: Definition, Principles, and Why It’s Critical

An anchor is the system that secures climbers to the rock (or ice or snow), used for belaying, rappelling, and protecting a stance. Built from bolts, removable gear, or natural features tied together, a sound anchor must be solid and reliable enough to hold the forces involved. Anchor-building follows core principles — often summarized as SERENE or ERNEST (Solid, Equalized, Redundant, Efficient, No Extension) — and is a fundamental, life-critical climbing skill.

Piton: Definition, History, and Modern Use

A piton is a metal spike, fitted with an eye for a carabiner, that a climber hammers into a crack in the rock to serve as protection or an anchor point. Once the backbone of traditional and aid climbing, pitons have largely been replaced by removable, non-damaging protection (the 'clean climbing' ethic), but they remain in use in aid climbing, alpine routes, and as fixed gear.

Bolt: Definition, How They Work, and Bolt Safety

A bolt is a permanent piece of protection installed by drilling a hole into the rock and fixing an expansion or glue-in bolt with a hanger, into which climbers clip quickdraws. Bolts make sport climbing possible by providing reliable, pre-placed protection, and are also used to build fixed anchors. Because they're permanent and weather over time, assessing bolt condition (and trusting only sound ones) is an important safety skill.