FS road #257 is on the Kaibab NF motor vehicle use map (https://www.fs.usda.gov/detail/kaibab/maps-pubs/?cid=fseprd490027) as open to public. It is a good graded gravel road but does have some clay so beware after wet conditions. Nice forested flat ridge area with many options for dispersed camping with TTs and RVs. No designated sites, no tables, fire rings, trash dumpsters or water. There is a vault toilet at the Arizona Trailhead across Hwy 89a from FS road 257. FS road #257 goes into a fire burned area about a mile or so north and you lose the tree shade canopy. The best thing about this area is the great cell signal. Only a couple miles to Jacob Lake which has fuel, ice, snacks and a restaurant. This area is also the route of the Great Western motorized trail and the nonmotorized Arizona trail is close by also.