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Discover
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Belgium
Wallonia

Wallonie

Liège
Verviers
Plombières

Mine entrance and Geul sinkhole — Plombières Nature Reserve

Discover
Places to see
Caves
Belgium
Wallonia

Wallonie

Liège
Verviers
Plombières

Mine entrance and Geul sinkhole — Plombières Nature Reserve

Highlight • Cave

Mine entrance and Geul sinkhole — Plombières Nature Reserve

Hiking

4.9

(511)

Mountain biking

4.8

(94)

Cycling

4.6

(66)

Road cycling

5.0

(10)

Gravel riding

5.0

(3)

This Highlight is in a protected area

Please check local regulations for:

Réserve naturelle agréée de Plombières

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  • Location: Plombières, Verviers, Liège, Wallonie, Wallonia, Belgium

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    Tips

    May 10, 2021

    Hiking

    The Plombières mining site is an industrial and natural site located in Plombières, in eastern Belgium. Between the 14th century and 1922, zinc and lead ores were mined and processed at this site. This mine was the most important lead mine in eastern Belgium and the third for zinc. It flourished between 1856 and 1882.

    fr.wikipedia.org/wiki/Site_minier_de_Plombi%C3%A8res
    Translated by

    July 8, 2025

    Hiking

    In the mid-19th century, flooding from the Göhl River posed a major threat to the mine in Bleyberg/Plombières: Water repeatedly penetrated the tunnels and claimed lives. To prevent this, a diversion of part of the river was requested and approved in 1861.

    By 1862, a tunnel several hundred meters long was built beneath the rock, keeping the Göhl away from the mine. The construction cost approximately 200,000 francs.

    The tunnel is a technical monument to mining engineering from an era when hazards were deliberately controlled while simultaneously harnessing hydropower. It demonstrates how work-related accidents were prevented while simultaneously harnessing resources.
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    October 13, 2024

    Hiking

    The site of the former Plombières mine is home to species-rich calcareous grassland meadows, now protected as a nature reserve. The exceptional flora and fauna of this area are due to the heavy metal-rich soils, particularly the presence of zinc in the subsurface.

    Among the natural meadow relics, visible traces of the former metal industry can still be found:
    – Walls from former foundry floors
    – Remains of old smelting furnaces
    – Stones from former industrial buildings


    A small stream meandering through the area further enriches the ecological diversity of this special place.
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    Nearby routes

    Best routes near Mine entrance and Geul sinkhole — Plombières Nature Reserve

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    4.8

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    195

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    #1.

    Geulbenden Nature Reserve – Along the Geul Near Plombières loop from Plombières

    5.68km

    01:34

    100m

    110m

    Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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    Easy
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    Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

    Easy
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    Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

    Easy

    Details

    Informations

    Elevation 140 m

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    Monday 22 June

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    Additional weather tips

    Max wind speed: 10.0 km/h

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    Location: Plombières, Verviers, Liège, Wallonie, Wallonia, Belgium

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