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A living tree that is at least 15 centimetres (6 inches) in diameter will surely hold up several kilonewtons of force in any direction, and so is sufficient as being the sole anchor for any climbing anchor. A large (> 15 cm or 6 in diameter) and living tree is a natural anchor that is not redundant but still very strong.
Uses include creating friction prusik knots for ascending or gripping fixed climbing ropes, usually using thinner approximately 5 to 6 mm (0.20 to 0.24 in) cord, or for attaching to, and equalizing forces across, multiple fixed anchors points, [15] such as when setting up abseil or belay anchors on multi-pitch climbing routes, usually using ...
A snow anchor (also called a snow pro) is a type of natural or artificial protection used in mountaineering, alpine climbing and ice climbing as an anchor. Two common artificial devices are the snow fluke and snow picket. A snow anchor is used both for climbing and for securing tents and other camping gear, that is designed for use in sand and ...
Petzl is a French manufacturer of climbing gear, caving gear, work-at-height equipment, and headlamps based in Crolles (near Grenoble), France. [1] The company was created by the cave explorer Fernand Petzl in the mid-1970s. Their three specialties are: Vertical sports: equipment for mountaineering, climbing, caving, etc.
While bolts are commonplace in rock and gym climbing there is no universal vocabulary to describe them. Generally, a bolt hanger (or a fixed hanger) is a combination of a fixed bolt and a specialized stainless steel hanger designed to accept a carabiner, whereas in certain regions a bolt runner (or a carrot) describes a hangerless bolt (where the climber must provide their own hanger bracket ...
While the Grigri was designed as a belay device, some big wall climbers (such as those climbing Yosemite's Half Dome or El Capitan) have invented novel ways to extend its use and compromise its safety. For example, some big wall rope soloists use the Grigri (sometimes slightly modified) as a self-feeding hands-free self-belay device.
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