Tomasee
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Tomasee Lai da Tuma |
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Location | Grisons |
Coordinates | |
Primary inflows | Rein da Tuma |
Primary outflows | Rein da Tuma |
Basin countries | Switzerland |
Surface area | 2.5 ha |
Surface elevation | 2345 m |
Tomasee (Romansh: Lai da Tuma or Lag da Toma) is a lake at Piz Badus in Grisons, Switzerland. Its surface area is 2.5 ha. As a source of the Vorderrhein river, it is considered the source of the Rhine.