Scenes from the 2013 Iditarod

ASSOCIATED PRESS

A dog looks through the gated door on musher Mitch Seavey's truck at the ceremonial start of the 2013 Iditarod Trail Sled Dog Race in Anchorage, Alaska on Saturday, March 2, 2013. The race, which will take mushers and dog teams about a thousand miles across the Alaska wilderness, starts Sunday, March 3, 2013, in Willow, Alaska. (AP Photo/Mark Thiessen)

AP

Scott Janssen heads down the trail after departing the Finger Lake checkpoint in Alaska during the Iditarod Trail Sled Dog Race on Monday, March 4, 2013. (AP Photo/The Anchorage Daily News, Bill Roth)

AP

Musher Sonny Lindner snacks his dogs at the Finger Lake checkpoint in Alaska during the Iditarod Trail Sled Dog Race on Monday, March 4, 2013. (AP Photo/The Anchorage Daily News, Bill Roth)

AP

In this March 5, 2013 photo, a musher and dog team cross the ice between the Rohn and Nikolai checkpoints in Alaska during the Iditarod Trail Sled Dog Race. (AP Photo/The Anchorage Daily News, Bill Roth)

AP

Musher Anna Berington negotiates a steep drop off in the trail after departing the Finger Lake checkpoint in Alaska during the Iditarod Trail Sled Dog Race on Monday, Mar. 4, 2013. (AP Photo/The Anchorage Daily News, Bill Roth)

AP

Angie Taggart tends to Carmack at the Rohn checkpoint in Alaska during the Iditarod Trail Sled Dog Race on Tuesday, March 5, 2013. (AP Photo/The Anchorage Daily News, Bill Roth)

ASSOCIATED PRESS

Four-time Iditarod champion Martin Buser leaves the Rohn checkpoint in Alaska during the Iditarod Trail Sled Dog Race on Tuesday, March 5, 2013. (AP Photo/The Anchorage Daily News, Bill Roth)

AP

Musher Anna Berington, left, pulls her dog team up to the start line as Jessie Royer, right, talks to her leaders during the Iditarod Trail Sled Dog Race, Sunday, March 3, 2013, in Willow, Alaska. 65 teams will be making their way through punishing wilderness toward the finish line in Nome on Alaska's western coast 1,000 miles away. (AP Photo/The Anchorage Daily News, Bill Roth) LOCAL TV OUT (KTUU-TV, KTVA-TV) LOCAL PRINT OUT (THE ANCHORAGE PRESS, THE ALASKA DISPATCH)

AP

A musher drives their dog team down the start chute across Willow Lake during the Iditarod Trail Sled Dog Race, Sunday, March 3, 2013, in Willow, Alaska. 65 teams will be making their way through punishing wilderness toward the finish line in Nome on Alaska's western coast 1,000 miles away. (AP Photo/The Anchorage Daily News, Bill Roth) LOCAL TV OUT (KTUU-TV, KTVA-TV) LOCAL PRINT OUT (THE ANCHORAGE PRESS, THE ALASKA DISPATCH)

AP

Katherine Keith puts booties on one of John Baker

ASSOCIATED PRESS

Lance Mackey takes off in the Iditarod Trail Sled Dog Race, Sunday, March 3, 2013, in Willow, Alaska. 65 teams will be making their way through punishing wilderness toward the finish line in Nome on Alaska's western coast 1,000 miles away. (AP Photo/Rachel D'Oro)

ASSOCIATED PRESS

Lead dogs on the team of Louie Ambrose run during the ceremonial start of the Iditarod Trail Sled Dog Race Saturday, March 2, 2013, in Anchorage, Alaska. The competitive portion of the 1,000-mile race is scheduled to begin Sunday in Willow, Alaska. (AP Photo/Dan Joling)

AP

Michael Williams, Jr., greets fans along Cordova Street during the ceremonial start of the Iditarod Trail Sled Dog Race on Saturday, March 2, 2013, in Anchorage, Alaska. The competitive portion of the 1,000-mile race is scheduled to begin Sunday in Willow, Alaska. (AP Photo/Anchorage Daily News, Bill Roth)

AP

Cim Smyth drives his dog team at the ceremonial start of the Iditarod Trail Sled Dog Race on Saturday, March 2, 2013, in Anchorage, Alaska. The competitive portion of the 1,000-mile race is scheduled to begin Sunday in Willow, Alaska. (AP Photo/Anchorage Daily News, Bob Hallinen)

AP

A dog waits to run in the Iditarod Trail Sled Dog Race, Sunday, March 3, 2013, in Willow, Alaska. 65 teams will be making their way through punishing wilderness toward the finish line in Nome on Alaska's western coast 1,000 miles away. (AP Photo/Rachel D'Oro)