Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Login or Signup

Routes
Hiking trails & Routes
Germany
Bavaria
Middle Franconia
Nürnberger Land
Happurg

Houbirg – SevenSummits in the Nuremberg region

Moderate

4.8

(113)

413

hikers

Houbirg – SevenSummits in the Nuremberg region

02:50

9.37km

300m

Hiking

Attention: The Hohle Fels cave will be closed from Friday, February 6, 2026, through Wednesday, July 15, 2026. This closure is due to the establishment and construction of a nesting site for the common raven, a specially protected bird species. We kindly ask you to stay on the marked trail and not enter the closed area. The hike itself can be undertaken without further restrictions.

The tour to the Houbirg mountain combines historical sites and memorials with breathtaking panoramic views. It leads you past the Hersbruck/Happurg Documentation Center, which commemorates the former subcamp of the concentration camp of the same name. On the Houbirg, you will find a Celtic ringfort with an impressive circumference of 4.5 kilometers. Equally impressive is the view of Lake Happurg from the Hohle Fels cave.

The starting point is Happurg train station, located on the S-Bahn line 1. On the outskirts of town, you will pass the Hersbruck/Happurg Documentation Center. Here you can pause briefly and look at the informative display panels about this eerie place. Afterwards, the path leads uphill towards Houbirg. Part of the trail runs directly over the Celtic ringfort. The Hohle Fels (Hollow Rock) is then a good place for a short rest with a panoramic view, before the path leads you back down to Happurg.

by

Last updated: August 14, 2025

Waypoints

A

Start point

Train Station

Get Directions

1

1.16 km

Hersbruck-Happurg Concentration Camp Documentation Site

Highlight • Historical Site

Very nice and well-made documentation site, there are usually flyers there as well. Belongs to the exhibition site in Hersbruck.

The Dogger tunnel (also called Doggerwerk) is a tunnel system in the Houbirg mountain range. The tunnels of the Doggerwerk were dug in the years 1944 to 1945 by prisoners of the concentration camp Hersbruck in forced labor. In the planned underground production facility, war-critical BMW aircraft engines were to be manufactured. The construction management and the SS command staff were in Happurg. The completed total length is 3.9 kilometers, of which 2.6 kilometers still exist today. The code name was "Esche 1". It has been planned for some time to make parts accessible to the public.

Translated by Google •

Tip by

2

3.74 km

Houbirg Hillfort

Highlight • Historical Site

There is something special about hiking on the preserved remains of the walls of the ramparts, some of which are still ten meters high. The ring wall runs around the area of the former Celtic settlement over a length of over four kilometers. The ramparts consist of a deep ditch (“Hunnenschlucht”) with a spring, foreangle, rocks with a wing wall, rock bastion, forest section, “Hüll” (waterhole), quarries and four gates. There are well-made display boards with relevant explanations in various places.

Translated by Google •

Tip by

3

4.67 km

The Houbirg is a mountain near Happurg in Middle Franconia with an abandoned Celtic oppidum of the same name. Remains of the walls, some of which are still ten meters high, have been preserved and, with a length of four and a half kilometers, enclose an area of almost one square kilometer. In addition, a prehistoric site, a castle stable and a tunnel complex built as part of the underground relocation bear witness to the history of the survey.

Translated by Google •

Tip by

B

9.37 km

End point

Train Station

Loading

Way Types & Surfaces

Way Types

5.24 km

1.77 km

1.63 km

720 m

Surfaces

3.09 km

2.59 km

1.66 km

1.06 km

927 m

< 100 m

Sign up to see more specific route details

Sign up for free

Elevation

Elevation

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

Highest point (600 m)

Lowest point (350 m)

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Tuesday 26 May

29°C

13°C

0 %

Additional weather tips

Max wind speed: 20.0 km/h

to get more detailed weather forecasts along your route

Comments

March 5, 2023

Attention: The Hohle Fels cave will be closed from Friday, February 6, 2026, through Wednesday, July 15, 2026. This closure is due to the establishment and construction of a nesting site for the common raven, a specially protected bird species. We kindly ask you to stay on the marked trail and not enter

Translated by Google •

March 28, 2024

Beautiful, varied and very well signposted tour along historical sights. Part of the route runs on the impressive Celtic rampart. The highlight is the view of the Happurg reservoir. This hike is an absolute must in the Nuremberg region

Translated by Google •

guide_signup

Want to know more?

Sign up for a free komoot account to join the conversation.

Sign up for free

This route was planned by komoot.

Save

Edit route

Download GPX

Move start point

Print

Share

Embed on a website

Report an Issue

Nearby routes

Moderate

4.6

1,802

Wallenstein Loop

02:13h

8.30km

90m

Trail Reviews

DreiFarben
May 25, 2024, SevenSummits im Fränkischen Land: Houbirg

Seven tours to the highest elevations in the Nuremberg region - all 600-meter peaks. Seven Summits. Today we start with the Houbirg (616 m) from Happurg. The path leads to one of the most important Celtic hilltop settlements in southern Germany. The first people settled on the Houbirg plateau as early as the Middle Bronze Age around 1600 BC. Past one of the closed entrances to the Doggerstollen, a planned but never completed underground factory complex for the armaments industry in the last year of the Second World War, the path goes up to the ring wall of the former settlement. It is a remnant of the former 4.5 km long surrounding wall. The path continues to the Hohlen Fels, from where you have a wonderful view of the Happurg reservoir.

Translated by Google

As part of the preliminary exploration for our multi-day hike in autumn 2024, Johanna and I walked the tour, albeit with minor deviations from the original tour. A beautiful, albeit really challenging circular tour in the first section. From the beginning it goes quite steeply uphill, then soon on the ring wall steadily rising slightly up to the Hohler Fels (wonderful view). You move mostly in the forest on beautiful paths, mostly root and stony paths - a dream. Our conclusion: In dry weather, a beautiful, somewhat demanding tour, for which you should not do without high hiking boots and poles. We hardly met anyone up to the Hohler Fels lookout point, but there was almost a "cattle drive" there.

Translated by Google

The description from "schöne-aussicht.de" is absolutely accurate: "Probably the most beautiful tour of the Seven Summits. An absolute dream tour in the Nuremberg region with the Houbirg and the Hohlen Fels as the destination. Even the deciduous forest had its golden robe in autumn and even made the approach a special treat. There is no way around the tour." We started from Happurg and changed the route slightly from the memorial site in order to ease the extremely long and steep climb past the Dogger. Our GPS data (Garmin GPSmap 66st): Distance 9.2 km, 400 m elevation

Translated by Google

I was here a few months ago. During the 1000 meter hike (https://bergparadiese.de/1000-hoehenmeter-wandern-bei-pommelsbrunn-im-nuernberger-land) we went to this impressive vantage point above the Happurg reservoir. But not only the Hohle Fels with its bizarre rock formations and the wonderful panorama is a highlight of this tour. Afterwards it was quite a stretch over the 4.5 km long ring wall, which the Celts built here around 550-440 BC. have erected. There are also wonderful forest paths that simply make you want more. Highly Recommended!

Translated by Google

The tour is not only scenically spectacular, but also has a long history with the Houbirg (Hou~Hag: enclosure or fortified place, Birg: to withdraw for defence). The first evidence of settlement comes from around 1600 BC. From 900 B.C. The 4.5 km long ring wall was probably built, on which long sections of the route are covered. Even from modern times, some historical - if not so beautiful - can be visited. From 1944, more than 8,000 prisoners from the Flossenbürg concentration camp dug the Doggerwerk (Dogger: horizontal layer of sandstone) into the mountain. Miles of tunnels in which the BMW aircraft engine plant was to be protected from bomb attacks. Almost 2,700 prisoners lost their lives here. Many of the tunnels have now been filled, the remaining tunnel entrances - apart from the openings for the bats - are walled up and not accessible. Safety measures are currently being taken by the state building authority in Nuremberg, so that the original route (green dot on a white background) is being partially diverted.

Translated by Google

Today I went on my first summit tour of the SevenSummits. While this term actually means the highest peak of the 7 continents, here 7 round tours to the highest elevations in the Nuremberg region are meant. The Houbirg from Happurg made the start today. It started from a parking lot at the Happurger Bach. Uphill past the war memorial and memorial of the concentration camp satellite camp, we soon went into the forest and continued uphill on a steep path. Passing one of the blocked entrances to the Dogger tunnel, a planned underground factory for the armaments industry of the 3rd Reich, it continues uphill until you finally come to the Celtic ring wall, which offered protection to one of the most important Celtic hilltop settlements in Germany. On a narrow path we continue on these impressive fortifications, which had a similar extent as medieval Nuremberg. The next highlight can already be guessed from the path, when the forest begins to thin out and the rocky peaks of the imposing Hohle Fels can be seen. The view over the Happurg reservoir and the surrounding area is simply fantastic! As is the cave in the rock below. After a short break to look around and enjoy, we went on and slowly downhill again. Instead of following the actual path, I turned into the "Steinerne Gassl", which shouldn't be missing on this "mountain tour". After I had left the rock and scree field, the route was actually supposed to pass further Dogger tunnels of this monstrous construction project. However, since the path was blocked for securing work in the tunnels, I followed the detour and only got one of the walled-up entrances in front of the lens. From there, the starting point of today's hike was almost reached again. It was a short but crisp tour, with a lot of variety and historically and geologically interesting things. Sturdy shoes and sure-footedness are recommended!

Translated by Google

Hiking trip organized by the Schnaittach SCR (Swiss Alpine Club). From Happurg, we first visited the documentation center and the central entrance tunnel H of the Doggerwerk (Dogger Works). Further up, we encountered the Celtic ring wall, which we followed to the summit of the Houbirg. Of course, we also visited the viewpoint overlooking the reservoir with its distinctive pine tree. The Hohle Fels (Hollow Rock) can be visited and explored again after the raven breeding season has ended. It's always beautiful up here. The descent took us to the Steinernes Gassl (Steinerner Gassl), which consists of the fallen rubble. Finally, we walked along various Doggerstollen entrances to Entrance F, which, as a special feature, is not completely walled up but has a door. However, access is not permitted. At the Glücksmühle (Lucky Mill), we were well looked after in the shady garden. Despite the high temperatures, it was a successful hiking trip.

Translated by Google

Today we were just before (or behind😉) the Upper Palatinate, i.e. still in Franconia. I only knew Happurg because of the reservoir, but there is much more to see from the past 👍🏼 - https://de.wikipedia.org/wiki/Houbirg - https://de.wikipedia.org/wiki/Doggerstollen - https://de.wikipedia.org/wiki/KZ-Au%C3%9Fenlager_Hersbruck

Translated by Google
Explore
RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepackingSitemap
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy