description Glomma River Overview
The Glomma River is the longest waterway in Norway, stretching approximately 621 kilometers through the country's southeastern region. It originates near the town of Røros and flows southward across wide valleys and forested landscapes before emptying into the Oslofjord near the city of Fredrikstad. Historically, the river was an important artery for the Norwegian timber industry, utilized extensively to transport logs from inland forests to coastal sawmills.
help Glomma River FAQ
What is Norway's longest river?
The Glomma, also written Glåma, is Norway's longest river. It runs for about 621 kilometres through southeastern Norway.
Where does the Glomma River begin?
The river's headwaters are at Lake Aursunden near Røros in Trøndelag. It then flows south through broad valleys and forested parts of eastern Norway.
Where does the Glomma reach the sea?
The Glomma empties into the Oslofjord at Fredrikstad. The lower river also passes the industrial cities of Sarpsborg and Fredrikstad.
Why is the Glomma important beyond its length?
Its basin covers roughly 13 percent of Norway's land area and supports major hydropower and industrial activity. The river has also been important for timber transport and settlement in southeastern Norway.
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