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Ernst August Stollen

Ernst August Stollen

Highlight • Historical Site

Ernst August Stollen

Road cycling

4.7

(34)

Hiking

4.7

(18)

Cycling

5.0

(2)

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Location: Bad Grund, Osterode am Harz, Harz Mountains, Saxony-Anhalt, Germany

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Tips

Klausi

March 24, 2025

Hiking

The Ernst-August Tunnel is a 26 km long, branched underground system, a truly extraordinary engineering feat.
It is the deepest drainage tunnel ever built in the entire Upper Harz region.
Source: Display panel

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Mein Komoot

August 15, 2021

Road cycling

Very interesting - you can occupy yourself with this tunnel after the tour and read it in peace. Its length and the so-called "mouth hole" are really noteworthy.

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Crosswolf

August 15, 2021

Road cycling

Drainage tunnel from the 18th century. from Clausthal Zellerfeld to Gittelde.

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Nearby routes

Best routes near Ernst August Stollen

3.9

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hikers

#1.

St. Mauritius Church, Gittelde – St. Johannis Church, Gittelde loop from Gittelde

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

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Easy

1.0

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#2.

View of the Harz Foothills – Ernst August Stollen loop from Gittelde

6.71km

01:56

170m

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

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Easy

hikers

#3.

Taubenborn Chapel – View of the Harz Foothills loop from Bad Grund

7.13km

02:01

160m

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

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Moderate

Details

Informations

Elevation 230 m

Weather

Saturday 23 May

24°C

12°C

0 %

Additional weather tips

Max wind speed: 13.0 km/h

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Take Me There

Location: Bad Grund, Osterode am Harz, Harz Mountains, Saxony-Anhalt, Germany

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Ernst August Stollen

#1.

St. Mauritius Church, Gittelde – St. Johannis Church, Gittelde loop from Gittelde

#2.

View of the Harz Foothills – Ernst August Stollen loop from Gittelde

#3.

Taubenborn Chapel – View of the Harz Foothills loop from Bad Grund

Other Popular Places to Check Out

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