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Vorma in Norway.jpg
Vorma from the Eidsvoll train station looking north
Origin Mjøsa
Mouth Glomma, Årnes
Basin countries Norway
Length 30 km

Vorma is a river in Norway that brings water from lake Mjøsa into the Glomma river. The Vorma is 30 kilometers long and flows through the town of Eidsvoll. The Vorma goes from Lake Mjøsa via Minnesund to join with the Glomma at Årnes.

Vorma was so named because it was a "warm" river that never freezes over, while both the Glomma and the Gudbrandsdalslågen routinely freeze. The junction of the Vorma with the Glomma at Årnes and Nes is the site of the Funnefoss on the Glomma, a 10 meter fall.


The junction of the Minnesund and the Vorma, Eidsvoll, served as an ancient 'ting' place - or meeting place for the local council or parliament - for Romerike during the period when travel by boat was much easier than by land. The "Eidsivating" was, according to tradition, founded by Halvdan Svarte, and served as the 'ting' place for all of the Opplands and Viken. Saint Olav also held a ting there and built a church at this site in 1017. In 1795 a landslide totally blocked the Vorma at Disen for 111 days, completely drying the riverbed. A channel was cut around it to prevent a major overflow, with accompanying downstream damage.

On the Vorma, south of Eidsvoll, lies the Svanfoss where the water level in Lake Mjøsa is regulated. A 60 meter long by 6 meter wide lock, which bypassed the Svanfoss, lifting boats 3 meters to allow the bypassing of the fall, opened in 1906.


  • East Norway and its Frontier by Frank Noel Stagg, George Allen & Unwin, Ltd. 1956

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Coordinates: 60°08′40″N 11°27′45″E / 60.14444°N 11.46250°E / 60.14444; 11.46250