Images: Iditarod check
Photo by Petty Officer 1st Class David Mosley
KNIK, Alaska - Coast Guard sponsored Iditarod musher Ken Anderson exercises members of his sled dog team helping maintain their conditioning and preparation for the Iditarod Trail Sled Dog Race Feb. 29, 2012.
The Coast Guard is sponsoring Anderson, an Iditarod race veteran during his running of the 40th Iditarod race that extends through some of Alaska's toughest terrain on a route to Nome.
U.S. Coast Guard video by Petty Officer 1st Class David Mosley