Kalslagen en Bilderdam
Kalslagen en Bilderdam is a former municipality in the Dutch province of North Holland. It existed between 1817 and 1854, and was sometimes simply called Kalslagen.
The municipality covered the hamlet of Calslagen and a number of polders to the south, including part of the hamlet of Bilderdam. In 1854, the municipality was divided between Aalsmeer, Uithoorn, and Leimuiden; the hamlet Calslagen itself became a part of the municipality Aalsmeer.
Coordinates: 52°14′N 4°44′E / 52.233°N 4.733°E
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