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Germany
North Rhine-Westphalia

Cologne District

Euskirchen
Hellenthal

Olef Reservoir

Highlight • Lake

Olef Reservoir

Hiking

4.9

(593)

Mountain biking

4.9

(413)

Cycling

4.8

(405)

Road cycling

4.7

(71)

Gravel riding

5.0

(4)

Running

5.0

(1)

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Naturpark Hohes Venn-Eifel

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  • Location: Hellenthal, Euskirchen, Cologne District, North Rhine-Westphalia, Germany

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    Tips

    October 14, 2017

    Mountain biking

    The Oleftalsperre is a rewarding destination for a tour around. Trips to Rocherath and Hollerath are also included, so you can also see something of the Eifel region.
    Translated by

    May 23, 2020

    Cycling

    The Oleftalsperre was built in 1954-59. Due to cracks, the barrier had to be reinforced twice afterwards. Since 1965, the barrier has been used for drinking water, energy production and water level regulation for the Olef.

    The height of the dam wall above the valley floor is 54.6 m, the storage capacity of the lake 19.3 million cubic meters.

    More info: de.wikipedia.org/wiki/Oleftalsperre
    Translated by

    February 15, 2022

    Hiking

    The picturesque Olefsee, a drinking water dam with a capacity of 20 million cbm, lies in the midst of beautiful forests. A circular route of 13.5 km runs around the Olefsee, which offers hikers or cyclists an inexhaustible source of relaxation. The dam wall of the drinking water dam in pillar cell construction is still unique in Germany.
    Source: hellenthal.de/Tourism/Seeing Values/Oleftalsperre
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    Nearby routes

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    Elevation 520 m

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    Location: Hellenthal, Euskirchen, Cologne District, North Rhine-Westphalia, Germany

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    View of the Oleftalsperre from the Wild Enclosure

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