Devil's Den State Park is in the Lee Creek Valley in the Boston Mountains, which are the southwestern part of The Ozarks.

The park, with an 8 acres (3.2 ha) CCC-built lake, is open for year-round recreation, with trails for hiking, mountain biking and horseback riding.

Devil's Den State Park also has several picnic areas, a swimming pool and cabins, with camping sites ranging from modern to primitive.

Fossils of coral and crinoids can be found along the banks and within Lee Creek at Devil's Den State Park.

[4] The valley is littered with numerous sandstone caves, bluffs, ravines, rock shelters and crevices that provided an excellent hiding place for outlaws on the Butterfield Stage Line, from 1858 until the beginning of the American Civil War in 1861.

Confederate and Union forces used the road during the Battle of Prairie Grove and for the Raid on Van Buren.

The young men of the CCC lived in military-style barracks and constructed many of the recreational facilities at the park, including pavilions, trails and the dam and spillway on Lee Creek that forms Lake Devil.

[8] Devil's Den State Park is in the Lee Creek Valley of the Boston Mountains, which are part of The Ozarks.