Longest Sled Dog race (current)

According to Official Guinness Records,

The longest annually contested sled dog race in the world is the 1,688 km (1,049 mile) Iditarod Trail, which takes place across Alaska, USA. Racers experience extreme weather conditions with temperatures dropping as low as -100 °F (-73 °C).

For a complete list of 2011 records, please visit 2011 Guinness Records in United States.

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