Red Rock is about 20 miles NORTHWEST of Tucson. I noticed that my last answer had an error or northeast, and I tried to delete it, but I am not sure if it was already sent. So, I am trying to clarify a bit here. The Red Rock area is getting more popular, but is still rather rural. There is no shopping yet, so a drive toward Marana, and/or Tucson is required for groceries, restaurants, entertainment, etc.
I would be happy to send you listings, which would provide you information about current property taxes for the parcels, whether there are paved roads to the property, utilities, etc. Let me know, and I'll set it up.
Have a great day!