Þórisvatn
Template:Short description Template:Refimprove Template:Infobox body of water Þórisvatn ({{#invoke:IPA|main}}; sometimes anglicized to Thorisvatn<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>) is the largest lake of Iceland, situated at the south end of the Sprengisandur plateau within the highlands of Iceland.Template:Cn
It is a reservoir with a surface area of about Template:Convert and is fed by the river Þjórsá, which comes down from the glacier Hofsjökull. On its southern end, Þórisvatn is used to generate electricity at a power station. It is like other Icelandic lakes, which are mostly glacial lakes or volcanic lakes.
The lake grew from about 70 km2 to 86 km2 Template:Contradictory inline with the construction of the power station and was previously only the second largest lake in the country.