The US Cross Country champs are back in Boulder this year for the first time since 2007. Whether you're a fan of the sport or active participant, this will be the place to be February 15th to see some of the best running on the national stage both at the senior and junior levels. Jump in the community 4k run, open to all, preceding all of the action, or see where you stack up against the nation's best (you must be registered with USATF for 2013 to enter) in the men's and women's open or master's races (40 and up).  As Deena Kastor said following the 2007 Cross Country Championships, Boulder "put on hands-down the best Championship race I've ever been a part of!" Don't miss it.