I've stayed here a couple of times the night before starting my hike on the Ouachita Trail.  The OT is a 200+ mile trail and this is park is the Western Terminus.    The park has tent and RV sites.   The tent sites are level and clean.  

The bathrooms and showers are very clean. It is a great place to grab a shower after a few days hiking.  The showers have plenty of hot water and the water comes out a good rate to make it easy to knock off that trail dirt.

For a small daily fee you can park your car here for the duration of the hike.   I have left my car here several times with no issues.