3 Day Off Road Expedition Trails

I'm interested in finding 3 or 4 day off road expedition trails throughs Southern California or Arizona.

Trials such as the Mojave Trail or the Great Western Trail. Not just fire roads that go on for hundreds of miles.

Let me know if anyone can recommend some cool adventure trails.

There are some trails in California & Arizona from this article:

http://www.roadandtrack.com/car-culture/travel/g6375/america-10-best-off-road-trips-4x4/

I would eventually like to do Arizona Backcountry Discovery Route, EL Camino Del Diablo, and Mojave Road.