| Big River | |
| Pushpin Map: | Wisconsin |
| Mouth Coordinates: | 44.6927°N -92.6979°W |
The Big River is a minor tributary of the Mississippi River in western Wisconsin in the United States. It flows for its entire 12.8miles length[1] in western Pierce County, rising in the town of River Falls and flowing south-southwestwardly into the town of Oak Grove. It enters the Mississippi River about 6miles southeast of Prescott.[2]