Millwood State Park is located just outside Ashdown, Arkansas, in Little River County in southwest Arkansas. Known for its excellent fishing and wildlife habitats, the park was established about a decade after the U.S. Army Corps of Engineers built 29,500-acre Millwood Lake north of Texarkana in Miller County. Held in place by a 3.3-mile-long earthen dam (the longest of its type in Arkansas), the lake’s trademark timber stands have made it a bass-fishing haven by providing cover vegetation and a food source that keep the fish in shallow, more accessible water.