The terrain accessed by Aerial Tram at Jackson Hole Mountain Resort remains closed, but construction is full speed ahead for the Caldera building just to the south. Jackson Hole real estate activity: NEW: Creekside 3-bed, 1,375-square-foot townhouse built in 1994 that is on Flat Creek, list $597,500. PENDED: Hidden Ranch home, again, with 3 beds, nearly 2,000 square feet on a quarter acre, list...