Source de la Chevrette

130 million years ago, sand and iron from the dismantling of continental granite massifs were deposited in a shallow sea. These formations, revealed today by erosion, are crossed by rainwater and underground flows. At the bottom of the Brayonne buttonhole, lined with impermeable clay, water infiltrates into the sandy layers which cover them and soon reappears in multiple sources and small streams. During its journey, this water dissolves and carries away the ferric oxides contained in the sands. So on the surface, these waters are slightly acidic and the iron remains in suspension giving this curious rusty color. This is the case of the Chevrette which you trace back to its source. 850 meters long, this water was too high in iron and was never used for cures. @OT Forges les Eaux