A natural monumental staircase formed by the flow of the water, the Rolampont tufière (calcified rock formation) is a classified site in a living biological environment that has been active for millennia. The tuffière is a veritable natural laboratory, as it transforms the foam into tuff. The bicarbonate in the infiltration water is decomposed: the carbon dioxide gas is assimilated by the foam (photosynthesis), which brings about dissolved chalky precipitation, which forms the tuff. The depositing of the limestone and the growth of the foam form cushions which rise and progressively build a natural dam. In this way, the formation of the tuff leads to tiered basins, which are one of the main characteristics.
You will find explanation signs on the edge of this path. Each one of them offers information about how the tuffière functions, its particular flora and how it is used by man.
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