Chris Smith on Twitter: "I recently learned a handy wee formula ... thanks to @BearGrylls! To estimate the time an uphill journey will take use Naismith's Rule: Allow one hour for every
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Naismith's rule is a rule of thumb that helps in the planning of a walking or hiking expedition by calculating how lo… | In the heights, Rule of thumb, Contour line
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Quick, Easy, & Accuate Hiking Time Calculator. Get your estimated hiking time, average pace, and average speed.
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