Lake Sempach
Lake Sempach, view from Sempach
Lake Sempach (German: Sempachersee) is a lake in the canton of Lucerne in Switzerland. Its area is about 14.5 km² and its maximum depth is 87 meters.
A 50 metre-large island named Gamma Insel is east of Sursee.
It gives the name to the municipality of Sempach.
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