Upon entering Bryce National Park last year we discovered all of the campgrounds were full. We decided to ask a park ranger where else we could camp, he handed us a map (in the pictures) and sent us on our way. About 5-10 minutes outside of the park there is a series of dirt roads on the left hand side that offers free dispersed camping. Forest road 090 or 1173, the main road in the area is called The Great Western Trail.
The spots here are your typical dispersed camping, with no official marking for sites. No picnic tables or restrooms and there a no fire rings. We found a nice clearing with a rock fire ring already made. While driving down the dirt road we did see a few RV's and trailers, i would say you could comfortably take any vehicle down this way to spend a night camping. The road was fairly well maintained, a few bumps and holes along the way but nothing major. Id say all in all we drove about 10 or 15 minutes to find a camp spot.
The distance back to the National Park was about 10-15 minutes from our camp spot, well worth it to stay outside the park and save some money as well as have a nice quiet and private area. The directions we were given by the park ranger had us take an immediate left after the Bryce Canyon NP sign onto rd 090. We eventually found a spot about a mile or so down that area.
Note on the map, if you follow road 087 down towards the reservoir, the Park Service recommends this as the best place to view wildlife before dusk. Next time you are down in the area, try out these spots. You will not be disappointed.
