Top rope climbing
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Top rope climbing (or Top roping) is a style in climbing in which a rope, used for the climber's safety, runs from a belayer at the foot of a route through one or more carabiners connected to an anchor system at the top of the route and back down to the climber, usually attaching to the climber by means of a harness. Assuming that the route is predominantly bottom-to-top; that the anchor holds; and that the belayer pays attention, the top-rope climber generally will not fall more than a short distance and can thus safely attempt even the most difficult routes. Most top-rope anchors can be reached through non-technical means, such as by hiking or scrambling to the top of the cliff.
Top-roping is often done on routes that cannot be lead climbed for one reason or another. It is the most common style used at indoor climbing walls and is also used in situations where other methods would be unsafe or environmentally damaging. For example, in Kent and Sussex in south-east England, the sandstone rock is soft and prone to erosion, so placing protection into the rock would be both damaging and unreliable. There, top-roping from permanent anchors and solo climbing are the only forms of ascent allowed.
By contrast, in some other areas, top roping is frowned upon for various reasons – including possible erosion from people trying routes too difficult for them or a lack of suitable top-rope anchor points.
When selecting a rope for heavy top roping use, a large diameter (>= 10mm) static rope (or low-stretch rope) is recommended for the anchors to prevent rope wear and reduce rock erosion and to ensure maximum safety in the event of a fall. A dynamic rope should be used for the climbers. It is important to arrange the anchor system such that the climbing rope touches the rock as little as possible; damage to or destruction of the rope can result if a rope is loaded or dragged across sharp rocks enough times or with enough force. For anchors which are set back from the cliff edge, extending the anchor using multiple slings, a long adjustable-length sling, or a length of static line is common. Most practitioners run the climbing rope through two screwgate carabiners attached to the anchor, to provide backup in case one becomes undone. In the interests of safety at least two separate and redundant anchor points should be used, with forces distributed as evenly between them as possible. In the photo above, it can be seen that only the two locking carabiners protrude over the cliff edge, allowing the climbing rope a relatively free run from belayer to climber.
Top-roped climbing is safer, psychologically easier, and less physically demanding than sport climbing, in which the lead climber must clip into preplaced bolts in the rock as they ascent, or traditional climbing, in which protection is placed along the route by a lead climber. Many novice climbers initially experience the sport through top-roping.
Both the rope up and its attachment to the climber can be seen in this view of top roping in the Black Forest, Germany.
Top rope belaying
Indoor top rope climbing in a climbing hall in Essen, Germany. The route is graded as UIAA 6 (YDS 5.9, Fr 5c)
- University of Oregon Outdoor Pursuits Program: Climbing Anchors