Natural sights - Page 3
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Sewen Lake is characteristic of the ancient glacial valleys. The lake is actually transforming into marshland. Beavers were reintroduced here recently in their natural habitat.
Overlooking the Doller valley the Alfeld Lake is dammed since 1883, to supply lower levels with water. His origin is due to glacial erosion. A path leads to a hut near a cascade.
The Gazon Vert pasture is situated in an glacial circus. The site is surrounded by big fallen rocks. Water is flowing from a peat bog to a cascade below.
The coal mine path is situated at the foot of the Ballon d'Alsace in Giromagny and shows the history of the copper silver and lead mining.
Nearby Hundruck pass, the Teufelskanzel rock has volcanic origins. Its name has Germanic roots and means devils pulpit.
The Vogelsteine lava flow dates from the volcanic period of the Vosges mountains, 330million year ago. At that time the surface was covered by a low water sea and islands.