After reading about Mick Fleetwood owning the winery I started digging on Stevie Nicks (she is a witch). I knew her dad owned Legend City which used to be a rock venue near ASU and Papago Park. I came across this in my search. I have lived in Phoenix all my life and had no idea there was a hidden tunnel system under ASU. The article also mentions a vault in North Mountain used by the elite.

https://www.thrillist.com/lifestyle/phoenix/9-phoenix-secrets-you-need-to-know-about#