Welcome aboard! I used to have a friend whose family lived near Wickenburg, so I did a lot of 4 wheeling and hiking in the area. Some of the trails up to Crown King were great, as was the upper Hassayampa River area (below Seal Peak).
If your bike does not already have lower gearing and a better-than-stock rear tire, those were the two biggest improvements I made for running trails.
Best wishes,
Dave