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MNN's 2010 photos of the year

A participant and a dog cross over a bridge

Photo: ZUMA Press

20 of 31

Trekking in Lapland

A backpacker and a dog cross over a bridge on Aug. 7 during the second round of the five-day backpacking event called Green Arctic in Lapland, Sweden.

The course is 110 kilometers long and draws some 2,000 participants from 21 countries and regions. Gold medals are awarded to those who finish the course in 72 hours, and silver and bronze medals are awarded to those who finish in 96 hours and 120 hours respectively.