I have the Denver box set, so give me a little bit to check, but if memory serves me right the military was kicked out.
Rumor has it, I think, that the Denver Data Haven is hosted on the leftover computer equipment.
Edit: My bad, that was the Air Force Academy. The details of Cheyanne are in the GM book. I'm looking for current events now. Well, current as of 2055-8.
Final edit: Bah. The writing of the time of the Denver box set does this massive, open-ended thing where exactly what is going on is left extremely vague. And this is the GM's book, no less! Last record was that Pueblo did get the place, called the Hole, but then the UCAS government blew the facility up and buried it. They claimed it was rogue soldiers acting without orders. The explosions were a lot smaller than they should have been, though, and rumors that parts of the facility still exist are out there. There's also rumors of some kind of astral barrier blocking an underwater stream, though these aren't confirmed.