The table includes all still water bodies located either entirely or partly in Switzerland, both natural and artificial, that have a surface area of at least 30 hectares (74 acres), regardless of water volume, maximum depth or other metric.
These lakes are ranked by area, the table including also the elevation above sea level and maximum depth.
Along with the mountains, lakes constitute a major natural feature of Switzerland, with over 1,000 km (620 mi) of shores within the country.
[Nb 1] Lakes, large and small, can be found in almost all cantons and provide an important source of water, leisure opportunities, as well as suitable habitat for fish-eating birds.
All these lakes are found in the four major river basins of Switzerland: Rhine, Rhone, Po and Danube,[Nb 2] at almost all elevations below the permanent snow line.