Devil's Den State Park

Hikers explore the unusual stone dam at Devil's Den State Park.

Hikers at Devil's Den State Park pause by one of the park's many crevices.

Mountain bikers cross the water at Fossil Flats.

This 2,200-acre tract set in a steep valley in the Boston mountain division of the Ozarks offers some of Arkansas' most memorable scenery.

It is named for one of several crevice caves in the area. The Devil's Den cave is a geological wonder, a 550-foot "wild cave" that is unlit and unequipped with safety measures.

A rugged stone dam across Lee Creek has created a small lake for fishing. Hikers, bicyclists and equestrians share trails in and around the park, with more than 50 miles open to hikers. An adjoining 65,000-acre national forest provides many more miles of trails.

The park is also of historic interest, with some of the best-preserved Civilian Conservation Corps structures in the state.

There are more than 100 developed and hike-in campsites in the park, plus 16 rustic-style cabins with kitchen facilities and a campground for equestrians.