This is a group equestrian camp that can be reserved via Recreation.gov for$50/night for up to 25 people. There is no potable water available, so plan to bring your own. There is a stream at the site where the horses may drink. There's enough space for a number of trailers, including large ones, and up to 25 horses. There's a fair amount of grassy area and it's lined with rhododendron. Dumpster provided. No cell service.
There are a number of horse trails that connect, starting with the Virginia Highlands Horse Trail nearby, so you don't need to trailer your horses to get to the trailhead