The Groundhouse River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map , accessed October 5, 2012 tributary of the Snake River in eastern Minnesota. Via the Snake River and St. Croix River, it is part of the Mississippi River watershed flowing to the Gulf of Mexico.
See also List of rivers of Minnesota List of longest streams of Minnesota
External links Minnesota Watersheds USGS Hydrologic Unit Map - State of Minnesota (1974) References