| Sultartangalón | |
|---|---|
| Location | Highlands of Iceland |
| Coordinates | 64°12′34″N 19°28′48″W / 64.20944°N 19.48000°WCoordinates: 64°12′34″N 19°28′48″W / 64.20944°N 19.48000°W |
| Lake type | reservoir |
| Primary inflows | Þjórsá and Tungnaá |
| Primary outflows | Þjórsá |
| Basin countries | Iceland |
| Surface area | 20 km2 (7.7 sq mi) |
| Water volume | 109 gigalitres (88,000 acre·ft) |
| Surface elevation | 297 m (974 ft) |
The lake Sultartangarlón is situated in the Highlands of Iceland to the north of the volcano Hekla. It is a reservoir of the river Þjórsá. Its surface area is 20 km².
Many reservoirs have been constructed and are being constructed in the highlands, which raises questions in Icelandic society about the roles and interests of industry and environment.