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2. Swing yarder - Wikipedia

   en.wikipedia.org/wiki/Swing_yarder

   A swing yarder is a mobile piece of heavy duty forestry equipment used for pulling logs from the woods to a logging road with cables. The swing yarder is also known as a grapple yarder. In any logging operation, it is necessary to transport the harvested tree from the stump to a landing for transport to market (usually on a truck). If the ...

3. High lead logging - Wikipedia

   en.wikipedia.org/wiki/High_lead_logging

   Also if the trees are being partially lifted as they are transported it is less disruptive to the ground which can be an environmental issue. High lead is a popular method of logging on the West Coast of America. First used in 1904, with Lidgerwood winches, and a spar tree.

4. Woodcraft Supply - Wikipedia

   en.wikipedia.org/wiki/Woodcraft_Supply

   Woodcraft Supply, LLC operates woodworking specialty retail stores across the United States (including 34 of 50 U.S. states). It also publishes a woodworking industry magazine, distributes consumer catalogs (in all 50 U.S. states and 117 countries) [ 1 ] and operates an ecommerce website. [ 2 ]

5. Christmas tree (oil well) - Wikipedia

   en.wikipedia.org/wiki/Christmas_tree_(oil_well)

   Some trees have a second swab valve, the two arranged one on top of the other. The intention is to allow rigging down equipment from the top of the tree with the well flowing while preserving the two-barrier rule. With only a single swab valve, the upper master valve is usually closed to act as the second barrier, forcing the well to be shut in ...

6. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. Spar (tree) - Wikipedia

   en.wikipedia.org/wiki/Spar_(tree)

   Spar tree at a logging camp in the United States, 1924. A spar tree is the tree used as the highest anchor point in a high lead cable logging setup. The spar tree is selected based on height, location and especially strength and lack of rot in order to withstand the weight and pressure required.