  Location within Georgia today | |
| Location | Clay County, Georgia,  USA |
|---|---|
| Region | Clay County, Georgia |
| Coordinates | 31°46′9.08″N 85°7′0.91″W / 31.7691889°N 85.1169194°W |
| History | |
| Cultures | Deptford culture, Middle Woodland, South Appalachian Mississippian culture |
| Site notes | |
| Excavation dates | 1950 |
| Archaeologists | Clarence Bloomfield Moore |
| Architecture | |
| Architectural styles | platform mound |
The Mandeville site (9CY1) is an archaeological site in Clay County in southwest Georgia in the United States. The site now lies under the Walter F. George Reservoir, which is a part of the Chattahoochee River basin.