Nedre Rudasjön

Nedre Rudasjön is a lake in Stockholm County, Södermanland, Sweden. Its maximum dimensions are approximately 590 metres by 200 metres. Nedre Rudasjön, or Nedre Rudan, is a lake in Haninge municipality in Stockholm which is part of the Tyresån's main catchment area. The lake is 14.5 meters deep, has an area of 0.0686 square kilometers, and is 39.3 meters above sea level. About 400 meters north of Nedre Rudan is Övre Rudasjön. The name Ruda is said to originate from the Old Swedish word for "clearing", but according to another theory, the name comes from the fact that there used to be plenty of carp fish ruda in the two lakes.