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Germany

North Rhine-Westphalia

Cologne District

Bergisches Land

Former greywacke quarry at Thomaskotten

Discover

Places to see

Germany

North Rhine-Westphalia

Cologne District

Bergisches Land

Former greywacke quarry at Thomaskotten

Highlight • Historical Site

Former greywacke quarry at Thomaskotten

Hiking

4.8

(31)

Mountain biking

5.0

(4)

Cycling

5.0

(2)

Running

5.0

(1)

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Naturpark Bergisches Land

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Location: Bergisches Land, Cologne District, North Rhine-Westphalia, Germany

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Tips

Siggi

March 6, 2026

Hiking

In the Gelpe Valley, not far from the historic Thomaskotten, you'll find an overgrown rock face in the forest – the silent remnant of a small, old quarry. Greywacke, a hard natural stone used for buildings, roads, and workshops in the valley, was once extracted here. Today, nature has reclaimed the site: moss, roots, and trees cover the former quarry, making it appear almost like a natural rock formation. Thus, this unassuming rock still serves as a reminder of the early industrial history of the Gelpe Valley. 🌿🪨

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Ronsdorf Reservoir – Gelpetal Hiking Trail loop from Ronsdorf

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Ronsdorf Reservoir – View of Bergisches Land loop from Bergische Universität Wuppertal - Campus Grifflenberg

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Gelpe Stream – Gelpetal Hiking Trail loop from Hahnerberg

11.0km

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Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Details

Informations

Elevation 240 m

Weather

Friday 5 June

19°C

9°C

51 %

Additional weather tips

Max wind speed: 18.0 km/h

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Location: Bergisches Land, Cologne District, North Rhine-Westphalia, Germany

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Former greywacke quarry at Thomaskotten

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Ronsdorf Reservoir – View of Bergisches Land loop from Bergische Universität Wuppertal - Campus Grifflenberg

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Gelpe Stream – Gelpetal Hiking Trail loop from Hahnerberg

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