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Boundless Season 2 · Episode 9

Yukon: Arctic Ultra

26th May 2014 44 mins Season 2 Episode 9

The 100 mile Yukon Arctic Ultra is possibly the coldest and toughest in the world. Racers battle the elements on skis and bikes, risking frostbite and navigation issues.

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Season 2 · Episode 10

Mexico: Caballo Blanco

In the Copper Canyons of northern Mexico is a remote and wild terrain where the CB Ultra race is held. This 75km race was featured in the book 'Born to Run' and is considered to be very special among ultra runners.
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