Verb
To run while carrying a backpack on a multi-day trail.
- Examples
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In 1987, with fellow runner Will Uher, John fastpacked the 211-mile John Muir Trail in the Sierra Nevada in 8 1/2 days, carrying a 30-pound pack.
To to backpacking with the goal of maximising the distance traveled every day.
- Examples
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It was slowing her down in adventure races, and it was complicating her plans to fastpack a bunch of trails in New Zealand.