Lake Tinn (tinnsjå) is the 3rd deepest lake in Europe at 460 meters.
Lake Tinn (tinnsjå) is a lake that holds up to 9.71 km3 of water, reaching a maximum depth of 460 meters. The lake also covers 51 km2 in surface area.
Countries along its shoreline in Europe: Norway.
Its water is found to contain traces of heavy water (deuterium oxide), due to sinking of the ferry SF Hydro during World War 2 (in 1994). SF Hydro was said to contain large quantities of heavy water produced at Vemork, a factory located in Rjukan, and was en route to Germany for purpose of nuclear weapon research.