|Location:||Nans-sous-Sainte-Anne, 44km south of Besançon and 13km east of Salins-les-Bains.|
|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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|Last update:||$Date: 2015/08/30 21:54:58 $|
The Source du Lison (Spring of the Lison) is an impressive karst spring, the resurgence of the Lison river. The river flows out of the portal of a waterfilled cave at the foot of a limestone cliff, the amount of water is huge and may become enormous during spring and after heavy rain. The cave is partly accessible, but not from the spring. Only 50m behind the spring the roof of the cave is collapsed and forms a huge collapse doline with vertical walls. At the floor of doline flows the water which will re-emerge soon at the spring. There is a trail to an outlook at the rim of the doline.
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