The Charles River (Massachusett: Quinobequin), sometimes called the River Charles or simply the Charles, is an 80-mile-long (129 km) river in eastern Massachusetts. It flows northeast from Hopkinton to Boston along a meandering route which doubles back on itself several times and travels through 23 cities and towns before reaching the Atlantic Ocean. == Hydrography == The Charles River is fed by approximately eighty streams and several major aquifers as it flows 80 miles (129 km), starting at…