was just looking at MSN maps (Google earth) and found out that there are odd gate configurations at the airport when it comes to the end of the terminals.http://maps.live.com/default.aspx?v=2&cp=44.023938~-99.71&style=h&lvl=4&tilt=-89.875918865193&dir=0&alt=7689462.6842358
Concourses H and G of terminal 3 have unusual gate configurations at the end. The planes pull up to these gates (H18, G20, G21) and can pull out without the need of a pushback truck because the gate swings out in the "1950's" style. you can see the best example of this at Paris CDG. (the circle terminal with the satelites)
Gates H15 and 17 are also elongated.
please note the shape of gate K20 as it is a mess, and K19 has an A and B which intersect each other.
gate L2 is way out there as well.
oh, I almost forgot, Gates at the end of concourse G are similar to the h and K ones.