Storsjøen is a lake in the Odalen valley in Innlandet county, Norway. The 42.8-square-kilometre (16.5 sq mi) lake straddles the municipal boundary between Sør-Odal Municipality and Nord-Odal Municipality. The lake lies just south of the village of Sand (in Nord-Odal) and just north of the village of Skarnes (in Sør-Odal).^[2]

Quick Facts Location, Coordinates ...

Storsjøen
Storsjøen Location of the lake Show map of Innlandet Storsjøen Storsjøen (Norway) Show map of Norway
Location	Nord-Odal and Sør-Odal, Innlandet
Coordinates	60°22′21″N 11°37′30″E
Primary inflows	Solauståa and Austvassåa rivers
Primary outflows	Oppstadåa river
Basin countries	Norway
Max. length	15.8 kilometres (9.8 mi)
Max. width	7.2 kilometres (4.5 mi)
Surface area	42.763 km2 (16.511 sq mi)
Average depth	7 metres (23 ft)
Max. depth	17 metres (56 ft)
Shore length1	105.45 kilometres (65.52 mi)
Surface elevation	129 metres (423 ft)
References	NVE[1]
1 Shore length is not a well-defined measure.

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The lake flows out into the Oppstadåa river which flows about 8 kilometres (5.0 mi) to the south into the large Glomma river. When the river Glomma reaches high water levels, the river begins to flow into the lake Storsjøen. This phenomenon has given rise to the very special delta area at the southern end of the lake. This delta area has been protected as the Seimsjøen nature reserve.^[2]

The sea is rich in fish and an important stopover for waders and swimming birds. The lake is a popular tourist destination for many tourists.^[2]

• List of lakes in Norway