Grane Reservoir – Innerste Dam loop from Clausthal-Zellerfeld

Bike touring routes & trails

Grane Reservoir – Innerste Dam loop from Clausthal-Zellerfeld

Hard

4.7

(192)

570

riders

Grane Reservoir – Innerste Dam loop from Clausthal-Zellerfeld

03:49

54.3km

810m

Cycling

Hard bike ride. Very good fitness required. You may need to push your bike for some segments of this route. The starting point of the route is right next to a parking lot.

Last updated: September 24, 2026

Tips

Temporary access restrictions

Includes segments with temporary access restrictions.

After 21.9 km for 148 m

Dismount required: • 9:00 AM-7:00 PM (otherwise open)

Waypoints

Start point

Parking

Get Directions

17.1 km

View of the Granetal Reservoir

Highlight • Viewpoint

The Granetalsperre is always worth a trip, the paths all around are great! There are enough views of the dam and benches to linger. Just beautiful!

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17.6 km

Shelter with a view of the Granestausee lake (HWN 110)

Highlight • Mountain Hut

The Granetalsperre, built in 1969, is the youngest of the Harz dams and was built in the Granetal. Since the river Grane itself did not carry enough water for the 3 km long lake, an approx. 7.4 km long tunnel to the Oker was created below the Oker dam. This also takes in water from the Gose on the way. Another 4.8 km long tunnel leads from the Radau to the Großer Romke and thus also into the Oker-Grane tunnel. There is also an underground connection to the Innerste Reservoir.

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20.4 km

Luder- und Füllekuhle

Forest

21.8 km

Goslar and Its Notable Facades

Highlight • Historical Site

26.6 km

Granetalsperre

Highlight • Lake

Granetalsperre

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27.1 km

Grane Reservoir

Highlight • Lake

Around the Granestausee leads a very nice bike path, which always offers beautiful viewpoints on the lake. He also does not have too many vertical meters and should be easy to handle, even for beginners.

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35.2 km

Innerste Cycle Path

Highlight • Cycleway

For me, the Innerster Cycle Path between Wildemann and Langelsheim is one of the most beautiful cycle paths in the Goslar district. It doesn't run directly along the road, even though it's right next to it for most of its stretch. However, since it runs along the former railway line, the path is secluded enough and lined with trees to allow you to cycle through beautiful nature.

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38.1 km

Innerste Dam

Highlight • Lake

The Innerste Dam is a dam in the Innerste region, located in the northwest of the Harz Mountains between Langelsheim, Wolfshagen, and Lautenthal. It was built between 1963 and 1966 and belongs to the Harz Waterworks. Its purposes are drinking water supply, flood protection, low-water elevation, and power generation. The average annual discharge of the Innerste Dam is 60 million cubic meters.

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41.3 km

Lautenthal

Highlight • Settlement

The mining town of Lautenthal owes its existence to a miner named Kaspar Bitter, who discovered a rich ore vein on the Kranichsberg around 1530. With some of the silver ore he had found, he went to the then sovereign, who paid him handsomely and prompted him to start mining in the valley of the lute. Three and a half centuries passed, during which every man in the village was connected with the mining industry, its changing ups and downs, its rare times of prosperity and frequent times of need, for better or for worse. Most of the mines ceased operations in 1930/31.
Today a state-recognized climatic health resort in the middle of the Harz Nature Park

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54.3 km

End point

Parking

Way Types & Surfaces

Way Types

26.6 km

12.2 km

9.79 km

5.13 km

639 m

< 100 m

Surfaces

31.4 km

18.4 km

2.56 km

1.61 km

412 m

< 100 m

Elevation

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

Highest point (580 m)

Lowest point (210 m)

Weather

Friday 9 October

12°C

6°C

31 %

Additional weather tips

Max wind speed: 21.0 km/h

to get more detailed weather forecasts along your route

Comments

July 29, 2024,Bicycle Tour

Original tour is the "Granetalsperre - Lautenthal in the Harz round from Goslar"

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August 10, 2022,An der Innersten zum Wildemann und verhext zurück nach Goslar

Very nice, often shady tour, to drive very well even without E. You should plan a little more time for Goslar. The tour is recommended!

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October 3, 2021,Granetalsperre – Innerste-Radweg über Hahnenklee

Today we went on the Innersteradweg from the Granetalsperre to the Innerstetalsperre to Lautenthal / Wildemann / Hahnenklee back to the Granetalsperre. Nice round, is recommended. 🚴‍♀️🚴‍♂️

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September 17, 2023,Innerste- und Granetalstausee ab Langelsheim 41km/558hm

Top route. Only the part behind Hahnenklee was a bad plan: steeply downhill over scree. Difficult to manage without a mountain bike. Greetings to Heika for her suggestions.

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August 27, 2023,Autofreies Innerstetal mit Hahnenklee und Granetalsperre 2023

Jaaaaa.... it was a lot less busy than when the "Car-free Innerstetal Bicycle Adventure Day" was still quite young. I can still remember how it was back then. Lower Saxony Environment Minister from the Greens, Monika Griefhahn, opened the adventure day. At that time we flocked to Wildemann in thousands.
Not much is left. What is most annoying are the …

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August 12, 2024,Goslar Tour 1

It was a really nice tour and we had great weather. There was a small part where we drove in circles. Please don't drive this part, it's at about kilometer 38, please drive straight down Granetalstrasse. Have fun if you follow it.

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June 9, 2023,2023 Harzrunde und WHH Radweg Wildemann bis Goslar

Another stage of the Weser-Harz-Heide cycle path from Wildemann to Goslar. A very nice bike path on a former railway embankment, paved and downhill. The way to Wildemann via Hahnenklee and the Steinbergalm. A bit tiring but that's part of it. All in all a very nice round.

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June 4, 2022,Innerste-Runde von Goslar

I rode the Innerste Radweg on Saturday after I had been looking for a circuit in the Harz Mountains for a long time. So by train from BS to Goslar and off we went. The first sub-goal is the innermost dam, then on via Lautenthal to Wildemann. Up to this point, the cycle path runs on a former railway line …

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