Red tannin water in a Peat Bog – Étang de la Gruère, Jura, Switzerland
 
 
 
 

This peat bog is located in the Jura mountain range in Switzerland. The small lake in it was formed in the 17th century, when a dam was built for a mill. It is filled with red and acid tannin water, what creates strange, surreal underwater images. The water of the peat bog empties finally in the Birs River, a tributary of the Rhine River.

Freshwater Ecoregion of the World : #404 Central & Western Europe

Major Habitat Type: temperate floodplain rivers and wetlands
Produced in 2013 and 2020. Red dots indicate personal favorites.
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