After being closed for quite a number of years, Lake Fort Smith State Park has reopened bigger and better than ever near Mountainburg in northwest Arkansas. We'll take you on a kayak tour of this 1490-acre reservoir. Mystic Caverns south of Harrison offers two caverns only 400 feet apart from one another - the other is Crystal Dome Cavern. The only Federally protected ghost town in the country is Rush, in the lower portion of the Buffalo National River region.