Newsweek: To savvy snowboarders, Baikalsk has long been the beautiful resort where visitors are so few you can feel as though you own the mountain, at least temporarily: for about 5,000 rubles ($175), you can have exclusive use of one of the six long runs for the day and never see another soul as you schuss through forests. Of course, you’ve had to tolerate a smell that seemed to be a blend of rotten cabbage and New Jersey Turnpike. For in addition to the resort, this town on Siberia’s Lake …