Sinnissippi Site | |
 | |
| Location | Sterling, Whiteside County, Illinois |
|---|---|
| Coordinates | 41°47′50″N 89°39′35″W / 41.79722°N 89.65972°W |
| Area | 6 acres (2.4 ha) |
| Built | c. BCE 1 |
| Architectural style | Burial mound |
| NRHP reference No. | 79000874[1] |
| Added to NRHP | May 14, 1979 |
The Sinnissippi Mounds are a Havana Hopewell culture burial mound grouping located in the city of Sterling, Illinois, United States.