Audra State Park is a West Virginia state park located on 355 acres (1.44 km2) in southwestern Barbour County. It was established around the remnants of an early 19th-century gristmill and the tiny community of Audra. A gristmill spillway is still visible in the river.The park is a hilly, secondary forest area bisected by the Middle Fork River. The deep pools, large, flat rocks, and riverside beach have provided generations of campers, local teens and college students a place to swim or work on their tans. Audra State Park is the site of Alum Cave, which is accessible by a boardwalk built along this overhanging sandstone ledge.