The nice part about Utah is you can pretty much pick any Forest Service road in the state and find boondocking spots to camp. This is particularly true around Brian Head. However, there was a very bad fire in the area a year or two ago that wiped out about 20 miles of forest. I would suggest you just enjoy exploring and find a serendipitous spot.
2002 Ford E250, 5.4L V8, RB-50 (AdVANture)
4x2, Action Van Ultimate Suspension System, 4 1/2" lift
Dana Spicer Gear, ARB Full Air Locking Differential
285/70R17 Big Foot A/T tires
Aluminess Bumpers F/R, Bushwhacker fender flares
Smittybilt XRC 12 Winch
2014 Chaser Adventure Off-Road Trailer