Historic Blakeley State Park encompasses more than 2,100 acres of the largest National Register Historic Site in the eastern half of the United States. Within the park's grounds are the site of the last major battle of the Civil War, including several miles of unspoiled Confederate and Union fortifications associated with the Battle of Fort Blakeley of April 9, 1865; the site and remnants of the important early Alabama town of Blakeley; colonial-era homesteads; and evidence of American Indian habitation from the Archaic, Woodland, Mississippian and Historic periods.

The park is situated in one of the most ecologically diverse sections of Alabama, and it is dedicated to preserving its natural setting as a unique wildlife preserve. The park traces its origins to 1974, when the 3,800-acre Blakeley Historic Site was placed on the National Register of Historic Places. In 1981 the Alabama State Legislature established the Historic Blakeley Authority as a state agency charged with developing and operating Historic Blakeley State Park.

The park currently focuses much of its historical interpretation on the story of the town of Blakeley and the Battle of Fort Blakeley which occurred on its grounds.