So being from Utah I wouldn't say Arkansas has "mountains" But they do have these really cool cliff rocks. We stayed at Devils Den State Park and the camping was great but the scenery was awesome. I highly suggest hiking the Yellow Rock trail just outside of the campground. The large rock "mountain" it leads you too are so much fun to play on. They have tiny caves and are incredibly easy to craw around on. P.S make sure and bring lots of bug spray.