Cross-country ski racing is never a cakewalk, with competitions that demand hours upon hours of preparation and hard work from participants. But the low-snow conditions in Rumford, Maine are presenting an extra-big headache for everyone involved in the 2011 U.S. National Championships. As the clock ticked down to the start of the event’s opening race on Sunday, organizers were hard at work preserving and augmenting the remnants of the snow on the course—and they were...