Marksville Prehistoric Indian Site, Archaeological site in Avoyelles Parish, Louisiana.

Marksville Prehistoric Indian Site is the type site of the Marksville culture, a local Hopewell variant, located 1 mile southeast of Marksville, Louisiana. Its burial mounds are enclosed by a horseshoe-shaped earthen embankment about 3,000 feet long, and the site also has large ring features found nowhere else. Radiometric dating places occupation at 0–400 AD.

Native peoples built the earthworks between roughly the year 0 and 400 CE, making this one of the main ceremonial centers of that period in the region. The culture associated with this occupation is now named after the town itself.

The mounds were used by different family groups who buried their dead according to their own customs, and this variety is visible in the different shapes and sizes of the burial structures. Walking among them gives a sense of how several communities shared the same ceremonial ground over generations.

The site lies about 1 mile (1.6 km) southeast of Marksville in Avoyelles Parish. It was run as a Louisiana State Park until August 2020, when ownership and operations passed to the City of Marksville; as of November 2021 it is closed to public access, so check locally before planning a visit.

Marksville is the type site of the Marksville culture, a local Hopewell variant, and the first site of that culture to be scientifically excavated. Its large ring-shaped earthworks are unlike those found at any other site of the period. Radiometric dating places occupation between 0 and 400 AD.