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Schleswig-Holstein

Stellmoor-Ahrensburger Tunneltal

Top 8 Natural Monuments in Stellmoor-Ahrensburger Tunneltal

Natural monuments in Stellmoor-Ahrensburger Tunneltal offer insights into Ice Age geology and prehistoric human activity. This 7-kilometer-long tunnel valley was formed by glacial meltwaters approximately 15,000 years ago, creating a landscape of tunnel valleys, drumlins, eskers, and kettle holes. The region is recognized for its preserved Ice Age landforms and as an internationally significant archaeological site where late Ice Age reindeer hunter cultures once lived. Designated as a nature conservation area, it supports diverse ecosystems including wet lowlands, riparian forests,…

Last updated: July 5, 2026

Arnesvelde Castle Ruins

Highlight • Historical Site

Die Reste der landesherrlichen Burg von Arnesvelde liegen in der Niederung des Hopfenbaches im Süden der Stadt Ahrensburg. Die Burganlage war im Spätmittelalter zeitweise ein bedeutender Verwaltungssitz der Grafen in …

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View of the Stellmoorer Tunneltal

Highlight • Viewpoint

The Stellmoorer Tunneltal nature reserve is located in the Hamburg district of Rahlstedt near the Höltigbaum and Ahrensburger Tunneltal nature reserves on the border with Schleswig-Holstein. It is a European …

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Stellmoorer Tunneltal Nature Reserve

Highlight • Natural Monument

what more could you want. ideal ways to run.

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Wartenberge Hills

Highlight • Natural Monument

Cool, what you learn about Komoot. Thanks @christian for creating this very interesting highlight!

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Hopfenbach Source Pond

Highlight • Lake

Here by the road "Brauner Hirsch" is the source of several streams. On one hand (according to Komoot and OpenStreetMap) the Hopfenbach - right by the small lake.
komoot.de/tour/967962197
(On …

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Hiking in Stellmoor-Ahrensburger Tunneltal

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BHHBbg 🗿
April 28, 2026, View of Stellmoorer Tunneltal

Another highlight named 'View of…'. With a gravel bike, you usually don't have the time or desire to look at every view. So keep riding and discover the many other 'Views of…'. Trust me, there are quite a few!

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Cool, what you learn about Komoot. Thanks @christian for creating this very interesting highlight!

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There are 3 such hills/mountains here - there is only a path up one of them. The three peaks of the Wartenberge are important witnesses to the geological past of our country. They were formed during the most recent glaciation at the end of the Weichselian glaciation around 19,000 to 17,000 years ago. The Wartenberge are isolated peaks in a flat ground moraine landscape. This glacial landscape was characterized by numerous Nordic boulders, which were used by people as valuable building material.

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Stellmoor–Ahrensburger Tunneltal is a nature reserve in the Schleswig-Holstein town of Ahrensburg in the Stormarn district. The approximately 339 hectare nature reserve is registered under number 95 in the list of nature reserves of the Ministry of Agriculture, Environment and Rural Areas. It was designated in 1982 (date of regulation: August 16, 1982). The nature reserve is largely part of the fauna-flora-habitat area “Great Crested Newt Area Höltigbaum / Stellmoor”. The responsible lower nature conservation authority is the Stormarn district. (Source: Wikipedia)

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Here by the road "Brauner Hirsch" is the source of several streams. On one hand (according to Komoot and OpenStreetMap) the Hopfenbach - right by the small lake. https://www.komoot.de/tour/967962197 (On Google Maps, the Hopfenbach is named Oetjendorfer Mühlenbach - a stream named Hopfenbach is not listed there) On the other side of the road is the source of the Stellmoorer Quellfluß, which flows in the opposite direction. https://www.komoot.de/tour/982863740 The Moorbek also originates only about 600 meters away, right behind Hamburger Straße at Kiebitzmoor.

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Oh yes, it's really fun here

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This was our first but not the last time here. Wonderful hiking trails with lots of information boards.

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To see the beauty of nature

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Frequently Asked Questions

What are the most popular natural monuments in Stellmoor-Ahrensburger Tunneltal?

Visitors frequently enjoy the View of the Stellmoorer Tunneltal, which offers expansive views of the nature reserve. Another highly rated spot is the Wartenberge Hills, geological formations from the last Ice Age. The Arnesvelde Castle Ruins also attract interest as a historical site with natural monument status.

What kind of trails are available in Stellmoor-Ahrensburger Tunneltal?

The Stellmoor-Ahrensburger Tunneltal offers a variety of trails for different activities. You can find numerous options for hiking, cycling, and mountain biking. The area features several hiking trails, including a moor experience and educational path with a floating wooden bridge, and the Alfred-Rust-Wanderweg.

What is the terrain like in Stellmoor-Ahrensburger Tunneltal?

The terrain in Stellmoor-Ahrensburger Tunneltal is characterized by its unique Ice Age landscape. It features glacial tunnel valleys, drumlins (oval hills), eskers (ridge-like deposits), and kettle holes (Sölle). The area also includes diverse ecosystems such as wet lowlands, riparian forests, remnants of raised bogs, extensive reed beds, and wet meadows. Trails can range from easy to difficult, often traversing varied natural surfaces.

Are there any significant historical or archaeological sites in the area?

Yes, the region is an internationally significant archaeological site. It was home to late Ice Age reindeer hunter cultures, including the Hamburg Culture and the Ahrensburg Culture. Notable discoveries include the world's oldest arrows, along with stone, wood, and bone tools. The Arnesvelde Castle Ruins also provide a glimpse into medieval history, with remains of earth walls and a former tower hill.

What kind of wildlife can I expect to see in Stellmoor-Ahrensburger Tunneltal?

The diverse habitats of the Stellmoor-Ahrensburger Tunneltal support a rich animal life. You might spot various dragonflies (e.g., moon damselfly, large emperor dragonfly), amphibians (e.g., common toad, moor frog, great crested newt), and numerous bird species. Cranes, marsh harriers, lapwings, snipes, and corncrakes breed here, while white storks use it for foraging. Kingfishers and grey herons are also present in the waters.

Are there family-friendly natural monuments or activities in Stellmoor-Ahrensburger Tunneltal?

Yes, the area offers family-friendly options. The View of the Stellmoorer Tunneltal is easily accessible and suitable for families. The Hopfenbach Source Pond is another natural monument that can be enjoyed by families. The educational paths, such as the moor experience with a floating wooden bridge, provide engaging opportunities for children to learn about nature.

What is the best time of year to visit Stellmoor-Ahrensburger Tunneltal?

The Stellmoor-Ahrensburger Tunneltal can be visited year-round, with each season offering a different experience. Spring and summer are ideal for observing the rich flora and fauna, especially birds and amphibians. Autumn provides beautiful foliage, while winter offers a serene, quiet landscape. The educational paths and trails are generally accessible throughout the year, though some wet areas might be more challenging after heavy rain or during thaw.

How can I reach Stellmoor-Ahrensburger Tunneltal by public transport?

The Stellmoor-Ahrensburger Tunneltal is located between Hamburg-Rahlstedt and Ahrensburg. Public transport options are available, with Ahrensburg Ost Station being a key access point for many routes in the area. It is advisable to check local bus and train schedules for the most convenient connections from Hamburg or other nearby towns.

What makes the Stellmoor-Ahrensburger Tunneltal geologically significant?

The entire tunnel valley is recognized as a 'Geotope of supra-regional importance' due to its remarkably preserved Ice Age landforms. It was carved out by meltwaters flowing beneath glaciers during the last Ice Age, approximately 15,000 years ago. This process created distinct features like glacial tunnel valleys, drumlins, eskers, and kettle holes, offering a direct experience of Northern Europe's geological history.

Are there any unique natural features like boardwalks or specific ponds?

Yes, the area features a unique Boardwalk in the Stellmoor-Ahrensburger Tunnel Valley, which allows visitors to traverse wet moorland areas and experience the diverse ecosystems up close. Additionally, the Hopfenbach Source Pond is a notable natural monument, marking the origin of several local streams.

What are some easy hiking options near the natural monuments?

For easy hiking, you can explore routes like the "Ahrensburg Ost Station – Arnesvelde Castle Ruins loop from Ahrensburg," which is approximately 4.6 km long. Another easy option is the "Arnesvelde Castle Ruins – View of the Stellmoorer Tunneltal loop from Höltigbaum," covering about 4.9 km. These routes allow you to experience the natural beauty and historical sites without significant difficulty. You can find more easy hiking options in the hiking guide for Stellmoor-Ahrensburger Tunneltal.

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