Other Instruments
Also in North America a modern variant of the chain as a tool is used in forestry for traverse surveys. This modern chain is a static cord (thin rope), 50 metres long, marked with a small tag at each metre, and also marked in the first metre every decimetre. When working in dense bush, a short axe or hatchet is commonly tied to the end of the chain, and thrown through the bush in the direction of the traverse, to ease working in dense forest.
Read more about this topic: Chain (unit)
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