Let 'er buck! Jackson Hole Mountain Resort opened for the season on Saturday. Four lifts, including the Sweetwater Gondola pictured here, served skiers and snowboarders. Today’s Jackson Hole real estate activity: NEW: Cottonwood Flats 2-bed, 1,120-square-foot townhouse built in 2011, listed by Eagle Mountain Real Estate for $599,000. NEW: Teton Village Tensleep 2-bed, 760-square-foot condo built...