Hornindalsvatnet is Norway's and Europe's deepest lake, and the world's twelfth deepest lake, officially measured to a depth of 514 metres (1,686 ft). Its surface is 53 metres (174 ft) above sea level, which means that its bottom is 461 metres (1,512 ft) below sea level.
|Location||Møre og Romsdal and Vestland|
|Primary inflows||Hornindøla river|
|Primary outflows||Eidselva river|
|Max. length||22 km (14 mi)|
|Max. width||4 km (2.5 mi)|
|Surface area||51 km2 (20 sq mi)|
|Average depth||236 m (774 ft)|
|Max. depth||514 m (1,686 ft)|
|Water volume||12.1 km3 (2.9 cu mi)|
|Surface elevation||53 m (174 ft)|
The village of Grodås lies at the eastern end of the lake in Volda Municipality in Møre og Romsdal county and the village of Mogrenda is located on the western end of the lake in Stad Municipality in Vestland county. The European route E39 highway runs near the lake. The village of Heggjabygda and Heggjabygda Church lie on the northern shore of the lake.
Its volume is estimated at 12 cubic kilometres (2.9 cu mi), its area is 50 square kilometres (19 sq mi) and ranks 19th in area among Norway's lakes. The main outflow is the river Eidselva, which flows into the Eidsfjorden, an arm off the main Nordfjorden.
The deepest point of the lake was explored using a ROV in 2006. A small white fish was discovered on the lake bottom – probably a new species of Arctic charr (Salvelinus alpinus). It was previously also located in Lake Tinn, Norway's third deepest lake.
- Seppälä, Matti (2005). The Physical Geography of Fennoscandia. Oxford University Press. p. 145. ISBN 978-0-19-924590-1.
- Henriksen, Petter (1998). Aschehoug og Gyldendals store norske leksikon. 16: Nøkkelbind. Kunnskapsforlaget. Page 97. ISBN 8257310808.
- Søreide, Fredrik. "Secrets of Europe's deepest lakes. Discoveries from Norway". Sea Technology. 55 (5): 39–42.
- Søreide, Fredrik. "Den mystiske dypvannsfisken i Tinnsjøen". Fauna. 59 (4): 122–129.
- "Hornindalsvatnet Maraton" (in Norwegian). Archived from the original on 2010-08-18. Retrieved 2010-07-11.
- Media related to Hornindalsvatnet at Wikimedia Commons