Jim and Mary's on US 93 just a little north of town is very nice. Full hookups, super-clean showers/laundry, beautifully maintained. The owners are very pleasant and helpful. The sites are gravel and some are not perfectly level, we did use one block under the tires on one side.
I had to email back and forth a few times to make changes in our plans. Got a prompt reply each time. I also shipped a box of hiking clothes since Delta was going to charge me an arm & leg to check 2 bags. Had it delivered to the office and picked it up. (My boyfriend was there with the RV and I flew in/out of Missoula.)
There is a little traffic noise but not really enough to be annoying. Otherwise the campground was very quiet.
We stayed there a total of 4 days just a couple of weeks ago. For weekend reservations, call a week ahead. They were filling up on weekends in early August.
Single empty-nester in Middle TN, sometimes with a friend or grandchild on board