| Farris | |
|---|---|
 View of the lake from the Gopledal vannverk | |
  Farris Location of the lake Show map of Telemark Farris Farris (Vestfold) Show map of Vestfold Farris Farris (Norway) Show map of Norway | |
| Location | Telemark andVestfold |
| Coordinates | 59°08′56″N9°54′10″E / 59.1488258°N 9.902801°E /59.1488258; 9.902801 |
| Type | Moraine-dammed lake |
| Catchment area | 491 km2 (190 sq mi) |
| Basin countries | Norway |
| Max. length | 20 kilometres (12 mi) |
| Max. width | 3.5 kilometres (2.2 mi) |
| Surface area | 21.14 km2 (8.16 sq mi) |
| Average depth | 35 m (115 ft) |
| Max. depth | 131 m (430 ft) |
| Water volume | 0.74 km3 (0.18 cu mi) |
| Shore length1 | 107 kilometres (66 mi) |
| Surface elevation | 20–23 metres (66–75 ft) |
| Islands | Bjørnøya |
| References | NVE[1] |
| 1 Shore length isnot a well-defined measure. | |
Farris is a lake on the border ofTelemark andVestfold counties inNorway. The 20-kilometre (12 mi) long freshwatermoraine-dammed lake is located mostly inLarvik Municipality inVestfold, but the northwestern part of the lake is located inSiljan Municipality andPorsgrunn Municipality inTelemark. The largetown of Larvik is located at the southern end of the lake.[2]
The 21-square-kilometre (8.1 sq mi) lake would have been part of the saltwaterLarviksfjorden, had it not been dammed by anend moraine left by the latestice age. That moraine is about 1 kilometre (0.62 mi) wide, separating the lake from the sea. There is a short river that runs through the moraine which drains the lake into thefjord. The lake Farris is a drinking water reservoir for about 170,000 people in the region.[2]
The largest island in the lake isBjørnøya, located just east of the village ofKjose. The mineral water brandFarris is named after the lake.
