Information board at the Hahnenkammsee
We are standing here on the edge of a former quarry, which now houses the so-called Hahnenkammsee. The area has a varied history. In the 1970s, quartzite mining began here, which was processed into gravel of various grain sizes. Since the 1990s, the southern part of the area has also served as a landfill for the disposal of excavated earth. After mining operations were stopped, the so-called Hahnenkammsee formed in the northern part of the quarry, probably due to the accumulation of rainwater.
The entire area of the former quarry is a gem that is home to a variety of plants and animals worthy of protection. A pair of eagle owls lives here, raising their offspring on the steep slopes every year. The common raven, which was once extinct in Germany, has become resident. There are also various amphibian species such as the common toad, grass frog, smooth newt, alpine newt and fire salamander, as well as dragonfly species such as the blue-green damselfly, the common king dragonfly and the common darter. The sand lizard and the grass snake are found throughout the quarry area.
Source: Information board at the site