The Lake Jackson Mounds Archaeological State Park is a special archaeological and historical state preserve designed to protect the cultural and structural history of this area in Tallahassee, Florida.

The park itself located near Lake Jackson and is composed of about six earthen mounds and a possible burial mound collectively called the Southeastern Ceremonial Complex. These early Native Indian structures are large and well-built to stand the test of time. The largest earthen mound in the park is 278 feet by 312 feet at the base and is up to 36 feet high. Other artifacts have turned up in the site or have been dug up by the archaeologists examining the surrounding area. Among these artifacts are jewelry like anklets, bracelets, and necklaces, with some clothing like a copper breastplate and cloaks.