All Day Northstar California Resort is proud to host the Sprint U.S. Snowboarding & Visa U.S. Freeskiing Grand Prix on January 9 - 12, 2014. The U.S. Grand Prix series will feature both halfpipe and slopestyle at every tour stop with each event counting towards Olympic selection. Halfpipe and slopestyle skiing, along with slopestyle snowboarding, will make their Olympic debut at the 2014 Winter Olympics in Sochi.