The Solitude Mountain Resort will be the site of the All Mountain Demo leading up to the Outdoor Retailer Winter Market in Salt Lake City in January. The demo will be held on Jan. 19 at the resort, 30 minutes outside the city, giving retailers the chance to try out winter and backcountry gear to help them decide what to order for the winter 2011-12 season. The show kicks off on Jan. 20 and runs through Jan. 23.