the Iditarod Trail Sled Dog Race

Iditarod musher Mike Williams Jr., from Akiak, Alaska cross from Kaltag to the Unalakleet, Alaska checkpoint amid blowing snow during the 2011 Iditarod Trail Sled Dog Race Sunday, March 13, 2011.

Iditarod musher Peter Kaiser, from Bethel, Alaska, crosses from Kaltag to the Unalakleet, Alaska checkpoint during the 2011 Iditarod Trail Sled Dog Race Sunday, March 13, 2011

Iditarod musher Robert Bundtzen, from Anchorage , Alaska, crosses from Kaltag to the Unalakleet, Alaska checkpoint during the 2011 Iditarod Trail Sled Dog Race Sunday, March 13, 2011.

Iditarod musher Lance Mackey, from Fairbanks, Alaska, crosses from Kaltag to the Unalakleet, Alaska checkpoint during the 2011 Iditarod Trail Sled Dog Race Sunday, March 13, 2011.

Iditarod musher Lance Mackey, from Fairbanks, Alaska mushes along the Unalakleet River on his way to the Unalakleet, Alaska checkpoint during the 2011 Iditarod Trail Sled Dog Race Sunday, March 13, 2011.

Iditarod musher Aliy Zirkle, from Two Rivers, Alaska, crosses from Kaltag to the Unalakleet, Alaska checkpoint during the 2011 Iditarod Trail Sled Dog Race Sunday, March 13, 2011

Andri Gristlvowsky of Unalakleet, Alaska photographs Iditarod musher Ken Anderson, from Fairbanks, as he mushes along the Unalakleet River on his way into the Unalakleet checkpoint during the 2011 Iditarod Trail Sled Dog Race Sunday, March 13, 2011

Inmate Daphne Morningstar gives a sled dog some attention on Sunday, March 13, 2011, at the Hiland Mountain Correctional Center where prisoners care for dropped dogs from the Iditarod Trail Sled Dog Race

Iditarod musher Aliy Zirkle, from Two Rivers, Alaska, mushes into into the Unalakleet, Alaska checkpoint during the 2011 Iditarod Trail Sled Dog Race Sunday, March 13, 2011

Inmate April Krause bonds with a sled dog at the Hiland Mountain Correctional Center on Sunday, March 13, 2011, where prisoners care for dropped dogs from the Iditarod Trail Sled Dog Race.
First Person: 2011 Iditarod Trail Sled Dog Race