Wytheville KOA is your regular old KOA… clean, predictable clientele, and a friendly staff. Some poison ivy, so watch when you’re walking dogs or if the kids get into the underbrush.
The pull-throughs are a bit short (and not exactly contractor-level) but can easily accomodate 30 and above feet. Also, there are two clean, fenced-in pens: a small dog one and a large dog one, both of which are extremely large and make a nice touch for a couple of “no kids yuppies” like us. (Parents, these might be of some use for kids with attitudes after long drives.) For a workout, follow the marked hiking trail, which is wide, lengthy, well-marked, full of fauna, and hilly.
There’s a couple of gas stations at the exit, but they can be tricky for big rigs. Gas up before or after at another exit.