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Germany
Saxony-Anhalt
Harz Mountains
Goslar
Clausthal-Zellerfeld

The Lange Graben and the Dammgraben

Highlight • Monument

The Lange Graben and the Dammgraben

Recommended by 158 hikers out of 169

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    Best Hikes to The Lange Graben and the Dammgraben

    4.7

    (44)

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    1. Jägersbleeker Pond – Fortuner Pond loop from Clausthal-Zellerfeld

    11.7km

    03:04

    90m

    90m

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

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    Moderate

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

    Moderate

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

    Easy

    Tips

    April 25, 2025

    The Old Dam Ditch is an important historical hydraulic structure in the Upper Harz. It is the longest artificial ditch in the Upper Harz. Construction began in 1732. Its primary purpose was to divert surface water from remote, rainy areas (particularly the Bruchberg and parts of the Brocken massif) and thus supply energy to the mining industry in the Upper Harz. The Dam Ditch is a central component of the Upper Harz Water Management System, which was declared a UNESCO World Heritage Site in 2010, along with the Rammelsberg Mine and the old town of Goslar. Originally about 25 km long, it was shortened to about 19 km between 1820 and 1861 through the construction of underground sections (water tunnels). For centuries, it played an important role in supplying energy to the Upper Harz mining industry. The Dam Ditch crosses the watershed between the Weser and Elbe rivers.

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      Elevation 10 m

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      Tuesday 9 December

      10°C

      7°C

      48 %

      If you start your activity now...

      Max wind speed: 15.0 km/h

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      Location: Clausthal-Zellerfeld, Goslar, Harz Mountains, Saxony-Anhalt, Germany

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