Source Bleue Cusance

Blue Spring


Useful Information

Location: Cusance
Open: No restrictions.
[2009]
Fee: free.
[2009]
Classification: KarstKarst Spring TopicBlue Spring
Dimension: bring torch
Photography: allowed
Accessibility:
Bibliography:
Address: Source Bleue, Chemin Source Bleu, 25110 Cusance
As far as we know this information was accurate when it was published (see years in brackets), but may have changed since then.
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History


Description

Source Bleue (Blue Spring) is a typical karst spring with a blue lake where the limestone rich water rises from a cave below.

The blue colour is a result of the high amount of limestone in the water. All colours of the sunlight, except the blue one, are filtered by the water. The colour is best-visible over midday on sunny days. There are numerous karst springs which are called Blue Spring, to keep them apart we added the of its location.