EUROPE'S RIVERS AND LAKES

There are hundreds of rivers and tributaries in Europe.
The biggest are navigable rivers.
Rivers which flow into the Arctic Ocean: (completely frozen in winter)

• Pechora.
• Dvina.

Rivers which flow into the North Sea:

• Thames.
• Elbe.
• Rhine.

Rivers which flow into the Baltic Sea:

• Oder.
• Vistula.

Rivers which flow into the Atlantic Ocean: (with a high volume of water because of rainfall)

• Loire.
• Seine.

Rivers that flow into the Black Sea:

• Danube (Europe's second longest river).
• Dnieper.
• Don.

Rivers that flow into the Caspian Sea:

• Volga (Europe's longest river, 3.690 km long).
• Ural (It's often frozen in winter).

Rivers that flow into the Mediterranean Sea:

• Ebro.
• Rhone.
• Po.
• Tiber. 

When water collects in a basin, or depression, it forms a lake. Lakes are usually fed by rivers which flow into them but they also receive rainfall.
Lake Ladoga is the biggest lake in Europe.
Other important lake is Lake Constance.