I visited Arizona on a trip in 1999 along with a large group. While I was there we stopped at some kind of event that I believe was being held at a small hotel, either in Phoenix or an adjacent city. I recall that it was very flat, no nearby hills or mountains, and that it may not have been in the best part of town.
I took a few pictures, but unfortunately none of them have been sufficient to identify or locate this place. The relevant details I found include the following.
I think this says something like "Gregory's Grand Avenue Club" so the name could include "Gregory" or "Grand" but searching for variations on this did not turn up anything. I also looked at Grand Avenue in Phoenix for anything that resembled this place but did not find anything.
I suspect that this building may not exist, or if it does it no longer has the same name.