One of the very few campgrounds literally on the banks of the Missouri River. Don't let that scare you, the river doesn't flash flood and you'd have plenty of time and warning to pack up should the river rise that high.
The only thing that will scare you is the bathroom and showers. They are very dirty, dimly lit, and creepy. I guess they would get the job done but it really is sad whoever maintains it would think this is acceptable (a few brighter light bulbs, a fresh coat of paint and some real shower fixtures would go A LONG WAY!
If you are self contained in your camper then by all means check this place out!
Also this is a pretty remote area so for it to be first come first serve will make it very difficult for people to plan on a trip and be able to count on a place to setup camp.
Glasgow is a beautiful town with a lot of charm. Plenty of cute restaurants, bakery, soda fountain, and antique shops to enjoy!