The Blackwater River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map , accessed June 22, 2011 river in Aroostook County, Maine. From the confluence of its North Branch and South Branch () in Squa Pan Township (Township 10, Range 4, WELS. The river runs west to St. Croix Stream in Masardis. Via St. Croix Stream and the Aroostook River, the Blackwater River is part of the Saint John River watershed.
See also List of rivers of Maine
References
External links
Maine Streamflow Data from the USGS Maine Watershed Data From Environmental Protection Agency