Saint-Léonard Underground Lake
| Use attributes for filter ! | |
| Surface elevation | 509 |
|---|---|
| Area | 6000 |
| Length | 260 m |
| Width | 29 m |
| Mean depth | 4 m |
| Locations | Saint-Léonard |
| Valais | |
| Date of Reg. | |
| Date of Upd. | |
| ID | 2139138 |
About Saint-Léonard Underground Lake
Saint-Léonard underground lake is located at Saint Léonard in the canton of Valais, Switzerland. It is formed where a bed of Triassic gypsum, emplaced within impervious Carboniferous strata, has been dissolved by groundwater. With a length of 300 and a width of 20 m it is the largest underground lake in Europe.