The Kobuk 440, the last major distance race of the 2010-2011 season, kicked off in Kotzebue on Thursday (at 4:40 pm, naturally). 18 teams headed down the trail chasing a piece of the $50,000 purse.Read more here:http://www.alaskadispatch.com/article/kobuk-440-brings-2011-mushing-season-close