Blue Spring is beautiful and cold! Aside from the over zealous teenagers jumping into the spring it was a nice visit.
This is a primitive camping area and there are a lot of partying people in and around this area plus frequent motorboat traffic. No amenities, many generators. Drive in, pick a spot and set up camp. There are so many areas to visit around the river this would be an excellent base camp or you could use it as a stop off on a float trip.
Eminence, MO is nearby and a good place to refuel and get stuff you need for your adventures. Make sure you get a paper map because phone signal can be iffy.