That's where I grew up. And as far as I know, OC is allowed there. With state preemption, only Denver has a legal ban against OC in Colorado.
However, it's pretty uncommon there, so be prepared for some police to give you some grief over it.
EDIT: Here's the municipal code that's relevant:
Originally Posted by Municode.com
So it looks like there's an OC ban on city-controlled property that have a sign posted at the entrance.