Ardeypforte
| Ardeypforte | |||
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| Systematics according to | Handbook of the natural spatial structure of Germany | ||
| Greater region 1st order | Low mountain range threshold | ||
| Greater region 2nd order | Rhenish Slate Mountains | ||
| Main unit group | 33 → Süderbergland |
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| About main unit | 337 → Bergisch-Sauerland lowlands |
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| 4th order region (main unit) |
337 1 → Niederbergisch-Märkisches hill country |
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| Natural space |
337 1 4 → Ardeypforte |
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| Geographical location | |||
| Coordinates | 51 ° 24 '17.3 " N , 7 ° 21' 4.7" E | ||
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| local community | Witten , Wetter (Ruhr) | ||
| state | North Rhine-Westphalia | ||
| Country | Germany | ||
The Ardeypforte is a natural spatial unit with the order number 337 1 .4 and comprises the 140 m deep breakthrough valley of the Ruhr between Wetter (Ruhr) - Oberwengern and Witten - Bommern .
The valley, which contains a railway line ( Ruhrtalbahn or Elberfeld – Dortmund railway ) and a main road (Landesstrasse 675 or Bundesstrasse 226 ) to the left and right of the Ruhr , has an approx. 500 m wide meadow bottom at a height of 80 m and connects it the Hagen valley basin (order number 337 2 .1) with the Ruhr valley (337 1 .2). In the east rises the Ardey Mountains (337 1 .5) with steep, multiple notched valley slopes . In the west, the slope is only moderately sloped and is structured by trough valleys with open corridor terraces . This is followed by the Märkische Layerrippenland (337 1 .13) and the Haßlinghauser Ridge (337 1 .15).
Geologically, the Ardeypforte lies in the heavily folded, seam-bearing Upper Carboniferous part of the Westfalian I , the rock of which consists of mighty, locally adjacent conglomerate and sandstone banks. The bottom of the valley has rich gravel bodies that contain drinking water.
Major parts of the natural area belong to the Ruhraue Witten-Gedern nature reserve .