Seine River Krishna River Patapsco River Rhine River Mississippi River Seine St. Lawrence River Rhein River Godavari River Yamuna River Alster Elbe River Chicago River Chester Creek Nette River Lech River Tidal Straits Urban Areas Río de la Plata Mercury Transport in Rivers Annisquam River Sacramento-San Joaquin River Delta Paraná River Estuaries Main River Kamloops River Lake Ontario Ganga Plaster Creek Subarnarekha River Colorado River Indus River Maumee River Rhine River Mersey Linge Oberhavel Detroit River Flooding Havel Rio Grande Reno Wadi River Soar Hudson River