I would like to propose a journey into Arizona's past!
The Ruby Rd in southern arizona covers a lot of interesting terrain and history. The highlight is one of the best preserved ghost towns in the southwest. I believe it's open from Thursday-Sunday... you just drive in and give the caretaker $12. I am verifying this information though.
Much of the trip would be on easy graded roads, although multiple shorter sidebars will be legit 4x4-Low. Along the way we'll encounter mines, lakes, fun trails and great views.
Intent is to leave Saturday morning (fairly early), camping along the road somewhere when it gets dark, and then returning to Phoenix by mid afternoon Sunday.
Google Ruby ghost town for more info and let me know if you have any other questions. JD, you said earlier you were interested. Craig, you're already down there. The more the merrier.