In 1902, several cultural sites were reported along the the river in Econfina River State Park; however, descriptions of their locations were vague and subsequent attempts to locate them were unsuccessful. Most notably, a burial mound composed of sand piled 3.5 feet high and 50 feet in diameter was identified. Stone tool fragments and human bones were found in it; however, the site was later inadvertently lost during a construction project.
Another mound feature was found in 1997. It measures 4 feet tall by 15 feet wide and has yielded an assortment of stone tools and lithic scatters. There are a multitude of other sites in the park with stone tools or other lithic fragments, and they are generally thought to represent primitive camping or tool-making sites.
Eleven sites were located in 1985, and it was judged that their artifacts were likely created during the Middle to Late Archaic period, 2,500 to 7,000 years ago.
There are three known cultural sites from the historical American period:
- A cat-faced pine tree indicating past turpentine collecting.
- A road segment believed to date to at least the Civil War period.
- A 20th-century home site.
The documents associated with the historical road segment indicate that Confederate salt works also existed in association with this site but no evidence was uncovered.
At the homestead site, abundant artifacts are still apparent, including an intact chimney base, collapsed building materials (wooden walls, metal roof, window panes and frames), and assorted furniture and appliances. There are no historical structures currently standing on park property.
