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Naismith's rule
Rule of thumb for hiking time / From Wikipedia, the free encyclopedia
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Naismith's rule helps with the planning of a walking or hiking expedition by calculating how long it will take to travel the intended route, including any extra time taken when walking uphill. This rule of thumb was devised by William W. Naismith, a Scottish mountaineer, in 1892.[1][3][4] A modern version can be formulated as follows:
- Allow one hour for every 3 miles (5 km) forward, plus an additional hour for every 2,000 feet (600 m) of ascent.[2][5]
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