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Germany
North Rhine-Westphalia
Euskirchen
Hellenthal

Oleftalsperre Dam – View of the Olef Reservoir loop from Hellenthal

Routes
Running trails & routes
Germany
North Rhine-Westphalia
Euskirchen
Hellenthal

Oleftalsperre Dam – View of the Olef Reservoir loop from Hellenthal

Hard

3

runners

Oleftalsperre Dam – View of the Olef Reservoir loop from Hellenthal

03:10

28.6km

380m

Running

Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: August 2, 2026

Tips

Temporary access restrictions

Includes segments with temporary access restrictions. Check ahead to confirm restricted segments are open to the public.

After 591 m for 79 m

Waypoints

A

Start point

Bus stop

Get Directions
1

586 m

Oleft Reservoir Parking Lot

Highlight • Parking

Large car park in the immediate vicinity of the dam and the Seerandweg.

Translated by Google •

Tip by

2

1.04 km

Oleftalsperre Dam

Highlight • Monument

View over the over 50 meter high dam of the Oleftalsperre.

Translated by Google •

Tip by

3

2.55 km

View of the Olef Reservoir

Highlight • Viewpoint

beautiful view over the reservoir

Translated by Google •

Tip by

4

4.44 km

Trees Felled by Beavers

Highlight • Natural

5

6.53 km

Oleftalsperre Inlet

Highlight • River

From the inlet you can drive towards Hollerrath or Belgium 🚴‍♂️👍🏻.

Translated by Google •

Tip by

6

6.55 km

Rest Area on the Olef

Highlight • Rest Area

7

8.47 km

Fun singletrack

Highlight (Segment) • Trail

Videos of the section of the single trail from Hollerather Knie through the Oleftal to the inlet of the dam can be found on my YouTube channel at:
Part01:
…

Translated by Google •

Tip by

8

14.5 km

Jansbach Singletrail

Highlight (Segment) • Trail

The Jansbach valley is a remote stream valley on the border of Belgium and Germany near Rocherath. The Jansbach is a tributary of the Olef. The stream meanders through beautiful …

Translated by Google •

Tip by

B

28.6 km

End point

Bus stop

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Way Types & Surfaces

Way Types

24.5 km

1.93 km

1.44 km

577 m

< 100 m

< 100 m

Surfaces

18.4 km

3.23 km

2.87 km

2.84 km

1.18 km

< 100 m

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Elevation

Elevation
Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (650 m)

Lowest point (410 m)

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Weather

Powered by Foreca

Tuesday 13 October

16°C

8°C

0 %

Additional weather tips

Max wind speed: 10.0 km/h

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