| Lac de l'Entonnoir Lac de Bouverans | |
|---|---|
 Observatory at Lac de l’Entonnoir | |
  Lac de l'Entonnoir Lac de Bouverans | |
| Location | Doubs department, Franche-Comté |
| Coordinates | 46°49′48″N 6°12′6″E / 46.83000°N 6.20167°E / 46.83000; 6.20167 |
| Basin countries | France |
Lac de l'Entonnoir or Lac de Bouverans is a lake at Bouverans in the Doubs department of France.
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