Quarry 7 ( German Grube 7 ) -, a former quarry - quarry for the extraction of limestone within the city of Khan , North Rhine-Westphalia , Germany . The status of the conservation area was obtained in 1997 .
| Quarry 7 | |
|---|---|
| him Grube 7 | |
 Former Limestone Quarry 7 | |
| basic information | |
| Founding date | 1997 year |
| Attendance | 10,000 ( 2010 ) |
| Location | |
| A country |
|
| Nearest town | Khan |
Regulation
Quarry 7 is located in the east of Khan, on the territory adjacent to the Osterholz forest near the border of Wuppertal .
History
In 1899, on the site of an old artisanal quarry near the village of Gryuten , an industrial quarry was laid for the extraction of dolomitic [1] and massive limestone [2] from a geological deposit stretching in a strip [3] from the Düssel river valley ( Neanderthal region) to the city of Wuppertal . Limestone was processed in the lime kilns of the Khan and its environs to produce lime. Initially, horse-drawn transport was used for transportation , replaced over time by a narrow gauge field railway, then by cable car, and after the construction of the tunnel at Gryuten, 25-ton dump trucks began to transport mined limestone. the main limestone flow was directed towards the Wuppertal- Düsseldorf railway, where a large limestone kiln was built near the city of Hochdal . In 1964, 250 mining workers mined 720 thousand tons of limestone.
In 1966, the quarry was closed and at its bottom, groundwater formed a lake, the parameters of which began constant monitoring.
Despite the ban on visiting, the lake at the bottom of the quarry has become a favorite place for recreation and bathing of local residents, nicknamed the quarry "Canyon". By the end of the 20th century, the lake was dry and for tourists in the quarry on its rocky shelves [4] safe tourist marked routes were equipped, including the famous Wuppertal tourist route Eulenkopfweg (through the quarry).
Already in the eighties of the XX century , rare species of animals and plants began to be recorded in the quarry. An inventory of a new large biotope [5] , carried out in 1992, showed that 340 species of plants grow here and 7 species of amphibians , 122 species of butterflies, 63 species of birds, 7 species of locusts and 9 species of dragonflies live there. By 2011, the quarry was almost completely overgrown and turned into one of the most beautiful natural sites near the city of Wuppertal.
Conservation Status
In 1997, Quarry 7 was officially registered as a protected area. This status allows you to:
- to preserve and multiply those species of flora that suit steep rocky limestone slopes that are protected from cold winds or provide the necessary calcareous nutrition to local low-mountain endemic ;
- to preserve those types of vegetation that are suitable for rock talus;
- keep dry plants;
- to preserve rare species of endangered animals and plants;
- preserve the rare diversity and interdependence of small landscape complexes;
- to give lovers of geology , biology and ecology the opportunity to observe and study the local natural complex, as well as monitor its changes, timely informing the appropriate structures about adverse events or violations of environmental laws .
Notes
Links
- List of plants and animals career 7 (German)
- List of Grube 7 Plants
- Grube 7 - orchids and plant paradise
- Historical photos of career 7 (German)
- Historical photographs after the closure of quarry 7 (German)
- Tourist marked routes through quarry 7 (German)
- Grube 7 Photo Album (link not available) . Archived on March 9, 2011.