The larger rivers of Norway are found in the east, where the country’s longest river, the Glama (Glomma), has a course of 610 km (380 mi).
With its tributaries, the Glama drains about one-eighth of Norway’s area.
In the west rivers are generally short and swift, with many rapids and falls. The longest river in northern Norway is the Tana.
Flowing north into the Barents Sea, it forms part of the frontier with Finland, and it is renowned as the country’s most important salmon-fishing river.
Norway has tens of thousands of glacial lakes. The largest is Lake Mjosa in the southeast, with an area of 390 sq km (150 sq mi).