Bachalpsee or Bachsee is a lake with an area of close to the First (which can be reached with a cable car) above Grindelwald in the Bernese Oberland, Switzerland. The lake, located at an elevation of , is split by a natural dam, the smaller part of the lake being lower.
The lake is featured in Gmail as part of its mountain theme background (as of 2013).
See also List of mountain lakes of Switzerland
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