[brankrom]

[QUOTE=arkhitektor;7033924]It's a mock-up of the various materials and details of the building cladding. They are common in large projects to see how everything looks and fits together and allow the contractors and architects to iron out any problems before beginning full-scale construction:[\quote]

I've been watching them work on this for weeks. I always wondered what it was.

Also I was driving down the hill to work on 100 South and saw just how tall the core has gotten... its huge. I can see the top of the core over the Walker Building from the midway point in One Utah.