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Belgium
Wallonia

Wallonie

Liège
Verviers
Kelmis

Altenberg-Vieille Montagne Nature Reserve

Discover
Places to see
Natural Monuments
Belgium
Wallonia

Wallonie

Liège
Verviers
Kelmis

Altenberg-Vieille Montagne Nature Reserve

Highlight • Natural Monument

Altenberg-Vieille Montagne Nature Reserve

Hiking

4.6

(73)

Gravel riding

5.0

(1)

Cycling

5.0

(1)

Mountain biking

5.0

(1)

Road cycling

5.0

(1)

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

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    Tips

    April 21, 2025

    Hiking

    Zinc violet (Viola lutea subsp. calaminaria, synonym: Viola calaminaria) is a subspecies of Viola lutea. The plant occurs naturally in Kelmis (La Calamine) in the Belgian province of Liège. The plant has adapted to an excess of zinc, originating from an old mine spoil heap of a former mining company.
    Translated by

    April 21, 2025

    Hiking

    The species also occurs along the Geul, near Epen, where it just reaches the Dutch border. The zinc in the area along the Geul comes from the zinc mines that …
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    August 12, 2025

    Hiking

    In August, the calamine plants are in full bloom. Yellow calamine violets "Viola calaminaria" grow here densely in large colonies.

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    Their closest relative is the blue calamine violet "Viola guestphalica" in the lead pit of Blankenrode near Paderborn.

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    Nearby routes

    Best routes near Altenberg-Vieille Montagne Nature Reserve

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    4.8

    (203)

    549

    hikers

    #1.

    Oskar Tunnel (Oskarstollen) – Casino Pond loop from Kelmis

    12.0km

    03:15

    160m

    160m

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

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    Moderate
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    4.8

    (121)

    365

    hikers

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

    Moderate
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    4.8

    (73)

    253

    hikers

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

    Moderate

    Details

    Informations

    Elevation 230 m

    Weather

    Powered by Foreca

    Thursday 4 June

    17°C

    11°C

    82 %

    Additional weather tips

    Max wind speed: 22.0 km/h

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

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