Aspenites love to get out and do during the winter, so what better way to stay active than to participate in the SkiMo Race Series? Sponsored by the Aspen Skiing Company, the SkiMo series includes three races on Aspen Mountain, the first of which is tomorrow, January 10. Participants will test their mettle on short courses that combine uphill and downhill skiing and even a little bootpacking. There will be competitive courses and a beginner course so that skiers of all abilities will be able to participate. Details at aspensnowmass.com.