The Greenwood River is a tributary of the Brule River of Minnesota in the United States. It rises at the outlet of Greenwood Lake and flows south to the Brule River.U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map , accessed May 2, 2012

It was formerly called Diarrhea River, because it was supposed drinking its water caused diarrhea.

There are both brook trout and smallmouth bass present in the Greenwood River.

See also List of rivers of Minnesota

References

Minnesota Watersheds USGS Hydrologic Unit Map - State of Minnesota (1974)