Mjøsa

Mjøsa
Mjøsa
View northwards from Minnesund, Eidsvoll
Location Akershus, Hedmark, Oppland
Coordinates 60°40′N 11°00′E / 60.667°N 11°E / 60.667; 11Coordinates: 60°40′N 11°00′E / 60.667°N 11°E / 60.667; 11
Primary inflows Gudbrandsdalslågen
Primary outflows Vorma
Basin countries Norway
Max. length 117 km
Max. width 15 km
Surface area 362 km²[1]
Average depth 155 m[1]
Max. depth 449 m[1] (other sources give 468 m)
Water volume 56.0 km³[1]
Surface elevation 121 m[1] (other sources give 123 m)
Islands Helgøya
Settlements Hamar, Gjøvik, Lillehammer
References [1]

Mjøsa is Norway's largest lake, as well as one of the deepest lakes in Norway and in Europe as a whole, after Hornindalsvatnet. It is located in the southern part of Norway, about 100 km north of Oslo. Its main tributary is Gudbrandsdalslågen in the north; the only distributary is Vorma in the south.

Map with cities Lillehammer (North), Gjøvik (West), and Hamar (East)

From its southernmost point at Minnesund in Eidsvoll to its northernmost point in Lillehammer it is 117 km long. At its widest, near Hamar, it is 15 km wide. It is 365 km² in area and its volume is estimated at 56 km³; normally its surface is 123 metres above sea level, and its greatest depth is 468 metres. Its total coastline is estimated at 273 km, of which 30% is built up. Dams built on the distribuary of Vorma in 1858, 1911, 1947, and 1965 raised the level by approximately 3.6 metres in total. In the last 200 years, 20 floods have been registered that added 7 metres to the level of Mjøsa. Several of these floods inundated the city of Hamar.

The cities of Hamar, Gjøvik, and Lillehammer were founded along the shores of the lake. Before the construction of railways past the lake, it was an important transport route. Today, aside from minor leisure boating and the steamship Skibladner, there is no water traffic on the lake. Most of its shores are dominated by rolling agricultural areas, among them some of the most fertile grainlands in Norway. The main train line, Dovrebanen between Oslo and Trondheim goes along its eastern shore, making stops in Hamar and Lillehammer. The largest, and only, island is Helgøya. Except for Helgøya, Mjøsa only contains small islets. The most interesting of these are Steinsholmen, with the ruins of a Middle Age citadel.

From the south European route E6 runs along the eastern shore of the lake until the Mjøsa Bridge connects Moelv on the east with Biri on the west.

Contents

Fish

Lake Mjøsa has 20 species of fish. Among the most common are pike, European perch, common roach, greyling and the Hundertrout, a Brown Trout which can reach a weight of more than 20 kg. Another common species is the European smelt, which is the most important baitfish for the predators. Historically, the most economically significant species is the Lågsild (European cisco).

The name

The name (Norse Mjǫrs, Proto-Norse *Merso) must be very old. The meaning is, maybe, 'the bright/shiny one'. (If *mer- is related to the English word mere 'clear, bright', and -so is a suffix.)

Events

In 1975 the 14th World Scout Jamboree was held on its shores. More than 17.000 Scouts from 91 countries took part.

In 1995 a Swedish team lifted a Halifax Bomber that was shot down in World War Two

Culture projects

References

  1. ^ a b c d e f Seppälä, Matti (2005), The Physical Geography of Fennoscandia, Oxford University Press, p. 145, ISBN 9780199245901, http://books.google.com/?id=q33WekTp7tgC&pg=PA145 

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Look at other dictionaries:

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  • Mjøsa Cities — (Norwegian Mjøsbyene) is the name of a metropolitan region around the lake Mjøsa in the counties of Oppland (population: 90,906) and Hedmark (84,547), Norway. Usually the name Mjøsbyene refers to Gjøvik, Hamar and Lillehammer but it is also used… …   Wikipedia

  • Mjøsa Bridge — (Mjøsbrua) is a box girder bridge that crosses lake Mjøsa between Moelv and Biri in Hedmark and Oppland counties in Norway. The bridge is 1421 metres long, the longest span is 69 metres, and the clearance to the water is 15 metres. The bridge has …   Wikipedia

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