The grand opening of Vegas'premier preseason snowsport gathering will have the usual booths and exhibits featuring the latest gear from manufacturers and the latest poop from ski and snowboard resorts. As an added inducement, the only Vegas showing of Warren Miller's most recent production, Off the Grid, will take place at Snowjam. Show hours are 4-10 p.m. on Friday and 10 a.m.- 6 p.m. on Saturday and Sunday. Admission is $14 for attendees 13 and older (you'll also get a lift ticket at Utah's Brian Head resort) and free for those under 13 (sorry, no lift ticket).