The Bear River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map , accessed June 30, 2011 tributary of Long Lake in the U.S. state of Maine. It originates at the outlet of Bear Pond in the town of Waterford in Oxford County, then flows southeast into the town of Bridgton in Cumberland County and finally the town of Harrison, where it reaches Long Lake. Via Long Lake, the Songo River, and Sebago Lake, the Bear River is part of the Presumpscot River watershed, flowing to Casco Bay on the Atlantic Ocean.
See also List of rivers of Maine
References
Maine Streamflow Data from the USGS Maine Watershed Data From Environmental Protection Agency