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  2. Arborist - Wikipedia

    en.wikipedia.org/wiki/Arborist

    An arborist using a chainsaw to cut a eucalyptus tree in a public park Two arborists climbing and dismantling a Norway Maple in Ontario, Canada. An arborist, or (less commonly) arboriculturist, is a professional in the practice of arboriculture, which is the cultivation, management, and study of individual trees, shrubs, vines, and other perennial woody plants in dendrology and horticulture.

  3. Tree climbing - Wikipedia

    en.wikipedia.org/wiki/Tree_climbing

    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.

  4. Piton - Wikipedia

    en.wikipedia.org/wiki/Piton

    1960s-era pitons, including: knifeblades, lost arrows, bugaboos, ring angles, and bongs. A piton (/ ˈ p iː t ɒ n /; also called pin or peg) in big wall climbing and in aid climbing is a metal spike (usually steel) that is driven into a crack or seam in the climbing surface using a climbing hammer, and which acts as an anchor for protecting the climber from falling or to assist progress in ...

  5. Dave Evans Bicentennial Tree - Wikipedia

    en.wikipedia.org/wiki/Dave_Evans_Bicentennial_Tree

    The lookout platform was reached by climbing 165 metal spikes hammered into the trunk. [2] The Bicentennial Tree is one of three lookout trees, along with the Diamond and Gloucester Trees. Diamond Tree was closed in 2019. The Gloucester Tree and Bicentennial trees were also closed in 2023, citing a need for increased safety measures.

  6. Tree spiking - Wikipedia

    en.wikipedia.org/wiki/Tree_spiking

    Tree spiking involves hammering a metal rod, nail or other material into a tree trunk, either inserting it at the base of the trunk where a logger might be expected to cut into the tree, or higher up where it would affect the sawmill later processing the wood. Contact with the spike often damages saw blades, which can result in injuries, or ...

  7. Single-rope technique - Wikipedia

    en.wikipedia.org/wiki/Single-rope_technique

    Knots such as the prusik, Bachmann and Klemheist are used to ascend ropes in emergencies in climbing and mountaineering; they have ceased to be the primary ascent method in single-rope technique because they are slow in use, and ice or mud greatly reduce their efficiency. Numerous prusik systems have been devised. Popular systems are:

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