That's the West Branch tower, it's currently the only one in the Iowa City area that is live with LTE right now. There are a couple more sites that are in progress. So far the Kirkwood/MidAmerican tower has not had any work done... there were some Samsung shipping boxes delivered last week, so hopefully work will be starting soon!
In the sponsor thread we've started tracking each new site as it goes live, including noting all the serving cells. This way we can easily tell when a new tower goes live with LTE. Consider becoming a sponsor and checking it out!
http://s4gru.com/index.php?/topic/1195-information-about-s4gru-sponsorship-levels-and-how-to-become-a-sponsor/
Edit: nevermind, you already are a sponsor! I need more coffee.
If you haven't already, check out the spreadsheet thread here: http://s4gru.com/index.php?/topic/4711-nebraska-iowa-market-spreadsheets-and-maps/