Black sieving
| Black sieving | ||
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| Data | ||
| Water code | DE : 2766112 | |
| location | North Rhine-Westphalia , Germany | |
| River system | Rhine | |
| Drain over | Lenne → Ruhr → Rhine → North Sea | |
| source | Southeast of Altastenberg 51 ° 11 ′ 3 ″ N , 8 ° 28 ′ 36 ″ E |
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| Source height | 750 m above sea level NN | |
| muzzle | Above Westfeld coordinates: 51 ° 9 '25 " N , 8 ° 25' 52" E 51 ° 9 '25 " N , 8 ° 25' 52" E |
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| Mouth height | 498 m above sea level NN | |
| Height difference | 252 m | |
| Bottom slope | 49 ‰ | |
| length | 5.1 km | |
| Catchment area | 6.185 km² | |
The Schwarze Siepen is a 5.1 km long orographic right tributary of the Lenne in the North Rhine-Westphalian Hochsauerlandkreis , Germany .
geography
The brook rises southeast of Altastenberg at an altitude of 750 m above sea level. NN . The source is located on the northwest flank of the Kahler Asten in the immediate vicinity of the L640 state road. This accompanies the stream on its way in a south-westerly direction. Without flowing through a village, the Schwarze Siepen flows east of Westfeld at 498 m above sea level. NN on the right into the Lenne.
On its 5.1 km long path, the stream overcomes a height difference of 252 m, which corresponds to a mean bed gradient of 49.4 ‰. It drains a 6.185 km² catchment area via the Lenne, Ruhr and Rhine to the North Sea .