Pinnacle Mountain State Park is located just over a mile from the northwest edge of Little Rock, AR, in the foothills of the Ouachita Mountains. The primary natural feature of the 2,000 acre park is Pinnacle Mountain with an elevation 1,011 feet (308 m). It rises over 750 feet (230 m) above the nearby Arkansas River, which sits at about 250 feet (76 m) above mean sea level.