Read about Crowley. Couldn't figure out the link to the clue. Messed with your photo a bit and I think the sign in the background says Desert Caballeros. There is a Desert Caballeros museum in Wickenburg but it sure doesn't look like that structure. I found a RockingHorse Lane but no other street names that are anywhere close to having anything to do with a dizzy horse. I dunno. I've wasted enough time on this for today.