The Yukon Quest is currently underway - the most difficult dog sled race in the world (yes, harder than the Iditarod as that one has lots of communities and food drops along the way). I've seen the start of this race many a time (it starts in Whitehorse every other year) and the dogs are SOOOOOO excited to get out racing, there has to be a team of handlers to just hold the sled down and keep the dogs from bouncing over the leads and getting tangled.
This years leader just passed through Dawson City and should make it across the finish line (in Whitehorse, since this year they started in Fairbanks) early next week. I'll try and get a pic for you guys.
http://www.yukonquest.com/