Tree climbing

Last updated
A boy sitting in a tree A boy sitting in a tree in Shalban vihara area in Mainamati, Comilla.jpg
A boy sitting in a tree

Tree climbing is a recreational or functional activity consisting of ascending and moving around in the crowns of trees.

Contents

A rope, helmet, and harness can be used to increase the safety of the climber. Other equipment can also be used, depending on the experience and skill of the tree climber. Some tree climbers take special hammocks called "Treeboats" and Portaledges with them into canopies where they can have a picnic or sleep.

Some tree climbers employ a mixture of techniques and gear derived from rock climbing and caving. These techniques are also used to climb trees for other purposes: tree care (arborists), animal rescue, research, and activism.

History

A child climbs a tree. Youth climbing Californian tree.jpg
A child climbs a tree.

Professional arborists have been climbing trees since the late 19th century in the UK and North America. [1] Climbing a tree every day for a year or longer has become a challenge taken up by several artists; Todd Smith from Louisville, KY, USA, climbed a tree every day for 3 years. Henrik G Dahle invited people to climb with him and interviewed people in the canopy of trees, including former competitive tree climber Leo Murray of Monkeydo, who now runs tree top adventures. Other artists include Christopher B Gray from Connecticut, USA, Kamila Wajda from Przybowka, Poland and Cecylia Malik from Kraków, Poland who has published a book about her year climbing trees.

Techniques

Many different techniques (free climbing, self-belayed climbing with a doubled-rope technique, single-rope technique, and lead climbing) are used to climb trees depending on the climber's purpose for the climb and personal preference. Free climbing is performed without protective gear, and as such is the oldest method of climbing.

Technologically aided tree climbing is performed by lapping a long rope over a limb and ascending the fallen end using a friction knot tied from initial tie's excess tail. There are a large number of factors that can affect the difficulty of a climb; the regularity of branching, the brittleness of dead wood, the texture of the bark, the width of the trunk and branches, the height and location of the tree, and the weather can all contribute to challenges faced while climbing.

Getting to the first branch of a tree is typically the most difficult part of the climb due to the potentially large distance between the first limb and the ground. Both aid climbing and free climbing can be used, but the throwline technique is most typical among hobbyists. This is done remotely from the ground utilizing a throw weight and line. The weight is swung from its attached line as a pendulum, with the line either held between two fingers of one hand at hip level, or in a basket configuration achieved by running a bight of the line back through the ring that is held in the other hand, with the weight being swung between the legs in a wide stance. It is then launched toward the targeted branch. Once over the branch, the weight must return to the ground, and may have to be manipulated so as to isolate a single anchor point (doubled rope technique), or for SRT into an optimal redirect. The throw bag is then removed; the climbing line is tied on, and pulled through the canopy and back down again, at which point the climbing system may be installed.

Doubled-rope technique

Arborist climbing a Norway Maple in Ontario, Canada Tree Climber.jpg
Arborist climbing a Norway Maple in Ontario, Canada

The doubled-rope technique (DRT or DdRT) is used to self belay the climber in such a way that the rope can be retrieved without going back up the tree. One end of the rope is fastened to the climber's saddle (harness), from there the rope passes around the tree and back to a friction hitch, which is also attached to the climber. This system allows the climber to easily adjust the rope to provide a belay if free-climbing, or to go up or down if hanging on the rope. As long as the climber is below the anchor and there is minimal slack in the system, any fall will be restrained. This system can be placed into the tree from the ground, or the climber can advance the rope up the tree over the course of the climb. [2]

Depiction of a failed attempt at tree climbing, from an anecdote in Frances Fuller Victor's 1887 book Eleven years in the Rocky Mountains and a life on the frontier (Ch. V.) The Wrong End of the Tree.png
Depiction of a failed attempt at tree climbing, from an anecdote in Frances Fuller Victor's 1887 book Eleven years in the Rocky Mountains and a life on the frontier (Ch. V.)

Single-rope technique

The single-rope technique (SRT) is used mainly for getting to the top of large trees that cannot be easily free-climbed. With the adequate hardware, a throw line, an attached weight, and a launching system (e.g., a bow or slingshot), a climbing rope can be anchored to a branch very high in the tree. This is done by launching the weight (with the throw line attached) over the desired limb and tying the climbing rope to the unweighted end. The climbing rope is then hauled over the branch by pulling on the throw line. The line is anchored to the trunk or to the high limb itself by running one end through a closed bight made in the other end. The climber then ascends the rope (using a set of friction hitches or mechanical ascenders) to obtain the desired limb. With practice, this method is typically fastest and requires the least amount of hardware. One drawback is that it does not necessarily involve directly ascending the tree itself, as the vast majority of the time spent climbing is ascending the rope, and not the tree itself. Additionally, it can provide greater safety to a climber over DRT or lead climbing techniques, as the climber can rig the rope over multiple limbs when using a ground-level trunk anchor. If one limb breaks, then lower limbs may stop the fall.

Lead climbing

Lead climbing is employed by climber where points of protection are formed by girthing the tree's limbs with slings. Once the lead climber ascends the tree, they may create a belay or top rope anchor or else simply rappel down. If an anchor is created, then other climbers can subsequently climb the tree on belay without having to lead. Drawbacks to this method include the probability of hitting a lower limb or the main trunk in the event of a fall.

See also

Related Research Articles

<span class="mw-page-title-main">Glossary of climbing terms</span> For rock climbing and mountaineering

Glossary of climbing terms relates to rock climbing, mountaineering, and to ice climbing.

<span class="mw-page-title-main">Rock-climbing equipment</span> List of manmade gear

Rock-climbing equipment varies with the type of climbing undertaken. Bouldering needs the least equipment outside of shoes and chalk and optional crash pads. Sport climbing adds ropes, harnesses, belay devices, and quickdraws to clip into pre-drilled bolts. Traditional climbing adds the need for carrying a "rack" of temporary passive and active protection devices. Multi-pitch climbing adds devices to assist in ascending and descending fixed ropes. And finally aid climbing uses unique equipment.

<span class="mw-page-title-main">Abseiling</span> Rope-controlled descent

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.

Self-locking devices are devices intended to arrest the fall of solo climbers who climb without partners. This device is used for rope solo climbing, for "ground-up climbing", and for "top rope solo climbing". To date, several types of self-locking devices have evolved.

<span class="mw-page-title-main">Belaying</span> Rock climbing safety technique using ropes

Belaying is a variety of techniques climbers use to create friction within a climbing system, particularly on a climbing rope, so that a falling climber does not fall very far. A climbing partner typically applies tension at the other end of the rope whenever the climber is not moving, and removes the tension from the rope whenever the climber needs more rope to continue climbing.

<span class="mw-page-title-main">Lead climbing</span> Technique of rock climbing

Lead climbing is a technique in rock climbing where the lead climber clips their rope to the climbing protection as they ascend the climbing route, while their second remains at the base of the route belaying the rope to protect the lead climber in the event that they fall. The term is used to distinguish between the two roles, and the greater effort and increased risk, of the role of the lead climber.

<span class="mw-page-title-main">Top rope climbing</span> Type of rock climbing

Top rope climbing is a form of rock climbing where the climber is securely attached to a rope that runs through a fixed anchor at the top of the climbing route, and back down to the belayer at the base of the climb. A climber who falls will just hang from the rope at the point of the fall, and can then either resume their climb or have the belayer lower them down in a controlled manner to the base of the climb. Climbers on indoor climbing walls can use mechanical auto belay devices to top rope alone.

<span class="mw-page-title-main">Fall factor</span> Mathematical ratio relevant to climbing safety

In lead climbing using a dynamic rope, the fall factor (f) is the ratio of the height (h) a climber falls before the climber's rope begins to stretch and the rope length (L) available to absorb the energy of the fall,

<span class="mw-page-title-main">Rock climbing</span> Type of sport

Rock climbing is a sport in which participants climb up, across, or down natural rock formations or indoor climbing walls. The goal is to reach the summit of a formation or the endpoint of a usually pre-defined route without falling. Rock climbing is a physically and mentally demanding sport, one that often tests a climber's strength, endurance, agility and balance along with mental control. Knowledge of proper climbing techniques and the use of specialized climbing equipment is crucial for the safe completion of routes.

<span class="mw-page-title-main">Munter hitch</span> Adjustable knot used control friction in a belay system

The Munter hitch, also known as the Italian hitch, mezzo barcaiolo or the crossing hitch, is a simple adjustable knot, commonly used by climbers, cavers, and rescuers to control friction in a life-lining or belay system. To climbers, this hitch is also known as HMS, the abbreviation for the German term Halbmastwurfsicherung, meaning half clove hitch belay. This technique can be used with a special "pear-shaped" HMS locking carabiner, or any locking carabiner wide enough to take two turns of the rope.

<span class="mw-page-title-main">Multi-pitch climbing</span> Type of climbing

Multi-pitch climbing is a type of climbing that typically takes place on routes that are more than a single rope length in height, and thus where the lead climber cannot complete the climb as a single pitch. Where the number of pitches exceeds 6–10, it can become big wall climbing, or where the pitches are in a mixed rock and ice mountain environment, it can become alpine climbing. Multi-pitch rock climbs can come in traditional, sport, and aid formats. Climbers have also free soloed multi-pitch routes.

<span class="mw-page-title-main">Blake's hitch</span> Type of knot

The Blake's hitch is a friction hitch commonly used by arborists and tree climbers as an ascending knot. Unlike other common climbing hitches, which often use a loop of cord, the Blake's hitch is formed using the end of a rope. Although it is a stable knot, it is often backed up with a stopper knot, such as a figure-of-eight knot, for safety. It is used for both ascending and descending, and is preferred by many arborists over other hitches, such as the taut-line hitch, as it is less prone to binding.

<span class="mw-page-title-main">Ascender (climbing)</span> Devices used for ascending, braking, or protection in climbing

An ascender is a device used for directly ascending a rope, or for facilitating protection with a fixed rope when climbing on very steep mountain terrain.

<span class="mw-page-title-main">Prusik knot</span> Type of knot

A Prusik is a friction hitch or knot used to attach a loop of cord around a rope, applied in climbing, canyoneering, mountaineering, caving, rope rescue, ziplining, and by arborists. The term Prusik is a name for both the loops of cord used to tie the hitch and the hitch itself, and the verb is "to prusik". More casually, the term is used for any friction hitch or device that can grab a rope. Due to the pronunciation, the word is often misspelled Prussik, Prussick, or Prussic.

In rock climbing, an anchor can be any device or method for attaching a climber, a rope, or a load above or onto a climbing surface—typically rock, ice, steep dirt, or a building—either permanently or temporarily. The intention of an anchor is case-specific but is usually for fall protection, primarily fall arrest and fall restraint. Climbing anchors are also used for hoisting, holding static loads, or redirecting a rope.

<span class="mw-page-title-main">Single-rope technique</span>

Single-rope technique (SRT) is a set of methods used to descend and ascend on the same single rope. Single-rope technique is used in caving, potholing, rock climbing, canyoning, roped access for building maintenance and by arborists for tree climbing, although to avoid confusion in the tree climbing community, many have taken to calling it "stationary" rope technique.

<span class="mw-page-title-main">Rope solo climbing</span> Type of solo climbing with protection

Rope-solo climbing or rope-soloing is a form of solo climbing, but unlike with free solo climbing, which is also performed alone and with no climbing protection whatsoever, the rope-solo climber uses a mechanical self-belay device and rope system, which enables them to use the standard climbing protection to protect themselves in the event of a fall.

<span class="mw-page-title-main">Dynamic rope</span> Rope designed to stretch under load

A dynamic rope is a specially constructed, somewhat elastic rope used primarily in rock climbing, ice climbing, and mountaineering. This elasticity, or stretch, is the property that makes the rope dynamic—in contrast to a static rope that has only slight elongation under load. Greater elasticity allows a dynamic rope to more slowly absorb the energy of a sudden load, such from arresting a climber's fall, by reducing the peak force on the rope and thus the probability of the rope's catastrophic failure. A kernmantle rope is the most common type of dynamic rope now used. Since 1945, nylon has, because of its superior durability and strength, replaced all natural materials in climbing rope.

<span class="mw-page-title-main">Belay device</span> Mechanical piece of climbing equipment

A belay device is a mechanical piece of climbing equipment used to control a rope during belaying. It is designed to improve belay safety for the climber by allowing the belayer to manage their duties with minimal physical effort. With the right belay device, a small, weak climber can easily arrest the fall of a much heavier partner. Belay devices act as a friction brake, so that when a climber falls with any slack in the rope, the fall is brought to a stop.

References

  1. Memory Lane - A History of ISA
  2. Kilgore, C. M.; et al. (2008). "Tree Canopy Research and Student Experiences Using the Doubled Rope Climbing Method" (PDF). Journal of the Botanical Research Institute of Texas. 2 (2). Archived from the original (PDF) on 2013-09-25.