Looking to do Skeenah Gap Rd to Thunder Rock around the end of March. Are there any LNT camp sites at or shortly after Bushy Gap just as it leaves the road walk? My thoughts are if my hike gets me to the Indian Rock Shelter too early in the day, I may want to keep going for a few more miles. The BMTA guide mentions camping but Sgt Rock's does not. Will be my first time on this section.