The Middle River is a short river in Washington County, Maine. From the outlet of Marks Lake () in Marshfield, it runs about U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map , accessed June 22, 2011 southeast to the estuary of the Machias River in Machias.

See also List of rivers of Maine

References

Maine Streamflow Data from the USGS Maine Watershed Data From Environmental Protection Agency