We stayed at the Natchez trace state park, which is different than the state forest. The campgrounds are in the state park and they are way overpriced ($35/night$ IMO. Plus the park people started chainsawing tree limbs before 8am the next day. Two stars for convenience to I-40 and the rest of the park seems nice enough.
Stopped to have lunch, dump our grey water and fill up our water. Asked them at the Visitor Center and paid $5. Nice park, lots of campsites and trails.