10 Barrel Brewing’s giant truck with a 70-foot ski run drops anchor in the parking lot of Hazel’s Beverage World in Boulder this afternoon, Friday, December 11. Pro riders show off at a rail jam sliding beginning at 3 p.m. Expect to find live music is live and hot energy. All ages welcome, but you need to be 21 to purchase 10 Barrel’s Pray for Snow winter brew. The event is FREE. 1955 28th Street, Boulder.