This beautiful grass and tree-shaded city park is 12 miles south of Murfreesboro and Crater of Diamonds State Park in Southwestern Arkansas. The back-in sites are on a big paved parking area adjacent to one of the ball fields, with shade trees behind the sites. Electric/water hookups, dump station, walking paths, paved interior roads. See the famed "Dinosaur Track" which now sits at the far side of the park next to the pond, which was found nearby in 1883, and the original framed newspaper article telling all about its discovery hangs in the park office. (I must say it was a bit of a letdown, as it is only one track, not a row of prints, and is very badly eroded from exposure to the elements.) Still, it is a very pleasant place to hang out for a few days, $10 per night, $60 per week when we were there in March 2008. We will definitely stay again if we are in the area.
My husband and I loved this park with its natural rock bridge over LaPrele Creek, and the beautiful red cliffs of the canyon walls the park sits in. But you can't come into the park with pets. There are several signs along the entrance road stating "NO PETS", and more at the entrance to the park itself. We have a 32ft 5th wheel trailer, and were able to go the wrong way around the small camping loop to back in to one of the 2 areas where a trailer or motorhome can fit. Since no one else was camping at the time, we had plenty of room to maneuver the trailer around to get into the site. Camping is free, 3 day limit but you can stay longer if no one else is waiting to get in, you just have to register with the caretakers. If you can't fit into the camping area, you can still come into the park for a visit. There is a large parking area at the back near the bridge where you can leave your RV while you check the place out, maybe have a picnic under the trees and walk through the rest of the park. The road loops through the parking area so you can get back out. There was one tree branch on the way out of the parking loop that looked a litte low, but we made it through fine, and our 5th wheel is 12'8" high.
UPDATE - This is no longer an option when traveling through Craig Colorado. Due to complaints from the KOA campground in town, the fairground does not allow overnight camping unless you are traveling with horses, or an event is actually taking place there. I got this information by calling the fairground office at 970-824-5708 and talking to the nice gentleman who answered the phone. Too bad, because there was a pretty park there with grass and trees. It would have been a pleasant place to stay for an evening, but we lacked a horse!