Mindfully.org put together a listing of executive orders and possible FEMA camp location and somebody even created a Google map.
Of course I looked up the AZ locations and from my recent research (search for "Wackenhut") there's definitely a lot going on with Wackenhut and the Florence prisons. I think there are two.
Keep in mind that this was in 2004 and I wonder why nobody updated. And I haven't verified any of the information.