Wast Water

General data
- Name: Wast Water
- Water system: River Esk (Ravenglass)
- Water type: Natural lake
- Progression: River Irt -> River Esk (Ravenglass) -> Irish Sea -> Atlantic Ocean -> Planet Earth
- Climates: Temperate
- Continents: Europe
- Countries: England (UK)
Description
Wast Water or Wastwater (/ˈwɒst wɔːtər/) is a lake located in Wasdale, a valley in the western part of the Lake District National Park, England. The lake is almost three miles (five kilometres) long and more than one-third mile (500 m) wide. It is a glacial lake, formed in a glacially "over-deepened" valley. It is the deepest lake in England at 258 feet (79 m). The surface of the lake is about 200 feet (60 m) above sea level, while its bottom is over 50 feet (15 m) below sea level. It is considered relatively oligotrophic. It is owned by the National Trust.