The Atacama Crossing is a six-day, 250-kilometer ultramarathon across the Atacama Desert of Chile. Established in 2004, the Atacama Crossing now attracts up to 150 competitors from more than 20 countries at each event. The main obstacle for competitors to overcome at the Atacama Crossing is the thin atmosphere, as the race takes place more than 2,500m above sea level.
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