Backcountry skiing on Teton Pass is off to a great start this winter, with a strong base and a long run of cold weather to keep the snow nice and soft. Today’s Jackson Hole real estate activity: NEW: Spring Creek Ranch 4-bed, 4,892-square-foot home on 3.77 acres built in 1993, listed by Jackson Hole Real Estate Associates for $4.15 million. NEW: Town of Jackson mixed-use building with 7 office...