| Location | Forsyth County, Georgia,  USA |
|---|---|
| Region | Forsyth County, Georgia |
| History | |
| Periods | Late Woodland period to Early Mississippian Woodstock Phase |
| Cultures | Mississippian culture |
| Site notes | |
| Excavation dates | 1951-1954 |
| Architecture | |
| Architectural styles | platform mound |
The Summerour Mound site (9FO16) is an archaeological site located in Forsyth County, Georgia. It was formerly on a floodplain of the west bank of the Chattahoochee River in northern Georgia. It is now flooded under the Buford Reservoir, also known as Lake Lanier.
This mound site, previously unreported, was discovered and excavated in 1951–54 by Joseph Caldwell in association with a Smithsonian Institution River Survey. He described the platform mound at the site as "considerably spread out in cultivation and ... now an oval, with a nearly level summit plateau about 225 feet (69 m) long, 150 feet (46 m) wide, and 9 feet (2.7 m) high."[1] Caldwell found a temple or other public structure on the mound summit. It was rectangular, 18.5 feet (5.6 m) long by 16 feet (4.9 m) wide, the outer walls constructed of small posts set in wall trenches.
The mound was originally classified as Early Mississippian culture. Materials and records related to the mound have been restudied and the consensus is that it was likely earlier, part of the Late Woodland period.