Celtic Experience Trail

Welcome to the homepage of the Celtic Experience Trail. The 6 km long path includes nine information stations and leads you through the late Celtic oppdium Heidengraben with the help of a free multimedia app. Experience the fascination of a breathtaking cultural landscape and immerse yourself in the world of the Celts 2000 years ago.

Metal find
Grave goods of the late Hallstatt period (650-450 BC) from the necropolis near the Burrenhof (LAD, RP Stuttgart).
The Heidengraben – a late Celtic oppidum on the Swabian Alb
Digital reconstruction of a chariot as used by members of the late Celtic elite at the Heidengraben (3dmuseum.eu).

If you are planning a visit, please download the app to your mobilephone or tablet before you visit the site.

Rediscover history!

The stations of the Celtic Experience Trail and the corresponding app offer numerous possibilities. By means of modern media technology, the path leads through more than 3000 years of human history and allows fascinating insights into times long past. Digital 360-degree reconstructions, aerial photographs, exciting audio plays and video animations, together with virtual 3D representations, bring the past of the Heidengraben back to life.
The multimedia app for the Celtic Experience Trail is available as free download in German and English from the Google Play Store and Apple App Store. In order to use the app’s content and media it must be activated on site (!) at the starting point of the Celtic Experience Trail, the information pavilion at the “Burrenhof”. Only then the app is functional and usable.
The individual stations are wheelchair accessible and barrier-free. Visitors with impaired vision are provided with tactile models at several stations. Short texts in Braille are also available at all stations. As an additional service the three communities of the Heidengraben region offer guided tours for disabled on request.
For guests without a mobile device there also is a printed guide available (Download Flyer).

The Heidengraben With an overall size of nearly 18 square kilometers, the Heidengraben is the largest Celtic settlement on the European continent. The Celtic city (lat. oppidum) was built around 130 BC.

Mighty fortifications of the “Elsachstadt” with a post-slot wall, a double ditch system and Gate A (3dmuseum.eu).

Early Celtic burial ground During the early Celtic period (800–450 BC) approximately 40 burial mounds were erected in the area of the Burrenhof. Inside of these tumuli cremation and inhumation graves with pottery, jewellery and weapons were found.

Water on the Swabian Alb Water is vital for human beings and animals. The natural scarcity of water on the Swabian Alb was handled already in prehistoric times by using so called “Hülen” and probably also artificial wells.

Agriculture and animal husbandry Agriculture was already highly developed during the late Celtic period, around 100 BC. Grain, legumes and livestock kept in stables secured the survival of the inhabitants of the Heidengraben.

Settlement and farmstead During the late Celtic period (130–90 BC), people lived in open settlements, fortified cities (like the Heidengraben), small farmsteads and manor-like estates where the landowning aristocrats resided.

Digital reconstruction of a late Celtic merchant with a balance as found within the “Elsachstadt” (3dmuseum.eu).

Entrance to town The center of the Heidengraben was the „Elsachstadt” which was separately fortified by a wall and a double ditch system. The “Elsachstadt” had four gates and was more densely build up than the rest of the oppidum

Trade and Crafts The „Elsachstadt“ was the economic and the craft center of the “Heidengraben”. Here lived the majority of people surrounded by workshops, marketplaces, dwellings and pens for livestock.

The way to the East The route to the East led through gate B of the „Elsachstadt“ onto the Swabian Alb and further to the Danube. From there travelers and traders with their goods could move to the Black Sea and back again.

Walls and Gates The outer fortifications of the Heidengraben consisted of post-slot walls with a protective ditch in front. Three monumental gates near Grabenstetten, Erkenbrechtsweiler and south of the “Burrenhof” secured the access.

Barrier-free access The “Seelenau” parking lot offers barrier-free access to the contents of stations 4, 5 and 7, as well as a low-barrier route to station 6.

By car Visitors of the Celtic Experience Trail should use the parking lot “Hochholz / Astropfad”. Possible travel routes by car: from the Autobahn A8, via Erkenbrechtsweiler (K 1262); from Reutlingen or Metzingen via Bad Urach and Hülben (L 250); from Ulm via Grabenstetten (K 6759) or from Neuffen in the direction of Grabenstetten (L1250).

Parking lot: “Hochholz / Astropfad” (approach)
From here, a short, signposted footpath leads on to the starting point of the Celtic Experience Trail.

By bus There are daily bus connections from Bad Urach, Owen (Teck) and Neuffen to Hülben, Grabenstetten and Erkenbrechtsweiler. On Sundays and holidays, between March 29 and November 1, the “Blaue Mauer” bicycle and hiking bus (line 191) runs from Owen (Teck) and Neuffen directly to the “Hochholz / Astropfad” parking lot. Bicycle transport is free of charge. Buses are equipped for wheelchair transport.

By train There are daily train connections from Stuttgart or Ulm via Plochingen to Neuffen and Owen (Teck) and from Tübingen to Bad Urach. At the final stops there are connections to regular bus services as well as to bicycle and hiking bus services (see “Getting there by bus”).

Texts Gerd Stegmaier (Region am Heidengraben)

Overall design studio klv (Berlin)

Station S

The Heidengraben

The roots of the settlement history in the region around the Heidengraben date back to the Bronze Age, around 1.500 BC. This is evidenced by settlements and grave finds discovered in various places. So in the area of the burial ground near the “Burrenhof”, the starting point of the Celtic Experience Trail where people were buried for the first time as early as 1.200 BC, during the so-called Urnfield Culture.

Miniature vessel and bronze ring fragment
Miniature vessel and bronze ring fragment from an Urnfield grave from the Burrenhof necropolis (LAD, RP Stuttgart).
Aerial view of the Heidengraben with the communities Grabenstetten, Erkenbrechtsweiler and Hülben
Aerial view of the Heidengraben with the communities Grabenstetten, Erkenbrechtsweiler and Hülben (O. Braasch, Landshut; LAD, RP Stuttgart).
Reconstruction of a wealthy woman of the Urnfield period (around 1.000 BC) with a bronze necklace
Reconstruction of a wealthy woman of the Urnfield period (around 1.000 BC) with a bronze necklace (3dmuseum.eu).

Station 1

Early Celtic burial ground

With the early Celtic period the Iron Age begins north of the Alps. It is the era of large tumulus fields, “princely seats” and burials with extraordinary rich grave goods as they are known from the Heuneburg on the upper Danube or from Eberdingen-Hochdorf near Ludwigsburg. At the “Burrenhof” also rich graves were discovered equipped with artistically designed daggers, gold earrings, amber jewelry or a four-wheeled wagon.

1.1_Rekonstruierte Grabhügel der frühkeltischen Zeit beim Burrenhof (© G. Stegmaier).
Reconstructed burial mounds of the early Celtic period near the Burrenhof (G. Stegmaier).
Burial of a rich man of the late Hallstatt period with a chariot
Burial of a rich man of the late Hallstatt period with a chariot (3dmuseum.eu).
Ceramic inventory from an early Celtic cremation grave
Ceramic inventory from an early Celtic cremation grave (C. Schwarzer, LAD, RP Stuttgart).
Gold earrings from an early Celtic man’s grave of the necropolis near the Burrenhof
Gold earrings from an early Celtic man’s grave of the necropolis near the Burrenhof (LAD, RP Stuttgart).

Station 2

Water on the Swabian Alb

The late Celts were excellent well builders. This is proven by numerous well shafts with wooden formwork, up to 20 m deep, which are known from various sites in BadenWuerttemberg. In order to bring the water to the dwelling places and into the houses, they used ceramic vessels, tubes made of animal skin or barrels made of wood which are a Celtic invention.

Digital reconstruction of a natural watering hole (Hüle) with a late Celtic draw well (3dmuseum.eu).
Digital reconstruction of a natural watering hole (Hüle) with a late Celtic draw well (3dmuseum.eu).
Reconstruction of a late Latène well (2nd/1st century BC), as it certainly existed at the Heidengraben (3dmuseum.eu).
Reconstruction of a late Latène well (2nd/1st century BC), as it certainly existed at the Heidengraben (3dmuseum.eu).
Transportation of water in wooden casks, which are a Celtic invention (3dmuseum.eu).
Transportation of water in wooden casks, which are a Celtic invention (3dmuseum.eu).

Station 3

Agriculture and animal husbandry

In late Celtic times the arable soils were worked with an iron-reinforced hook plough. The main crop was barley. The Celts cut cereals and grass with iron sickles and scythes. Mowing the grass enabled the feeding of animals with hay in winter and thus made livestock housing possible. Cattle, pigs, sheep, goats, horses, dogs and chickens were kept as domestic and farm animals.

Pigs were driven to pasture and into the forest until recent times. Among other things, acorns and beechnuts served as food (3dmuseum.eu).
Pigs were driven to pasture and into the forest until recent times. Among other things, acorns and beechnuts served as food (3dmuseum.eu).
Late Celtic farming with wooden hook plough that had an iron ploughshare and an additional plough blade to cut the soil in advance.
Late Celtic farming with wooden hook plough that had an iron ploughshare and an additional plough blade to cut the soil in advance (3dmuseum.eu).
Late Celtic farmer with sickle and scythe. The scythe was used for grass cutting, the sickle for grain harvesting (3dmuseum.eu).
Late Celtic farmer with sickle and scythe. The scythe was used for grass cutting, the sickle for grain harvesting (3dmuseum.eu).

Station 4

Settlement and farmstead

In addition to the city-like oppida and the unfortified settlements, there were also fortified manors in the countryside, so-called “Viereckschanzen”. These square enclosures were surrounded by a ditch and a rampart. The upper social class of the Heidengraben probably also lived in representative manor houses, which, however, were not fortified with a ditch and a rampart, but were only fenced in or surrounded by a palisade.

Unusual linchpin in form of a human, which once belonged to the chariot of a member of the late Celtic upper class
Unusual linchpin in form of a human, which once belonged to the chariot of a member of the late Celtic upper class (H. Zwietasch, LMW Stuttgart).
Interior of a late Celtic manor house, with fireplace, living and dining area
Interior of a late Celtic manor house, with fireplace, living and dining area (3dmuseum.eu).
Reconstruction of a late Celtic manor with representative residential building, storage buildings and stables
Reconstruction of a late Celtic manor with representative residential building, storage buildings and stables (3dmuseum.eu).

Station 5

Entrance to town

Station 5 of the Celtic Experience Trail is located directly in front of Gate A of the “Elsachstadt”. The once probably up to five meter high walls and the enormous gate must have been impressive in Celtic times. Through Gate A trade goods arrived in the “Elsachstadt” which were delivered from the west via the rivers Rhine and Neckar. These included for example amphorae from Italy or rotary mills from the Odenwald.

Transport of objects and long-distance trade goods, such as amphorae, on a flat-bottomed barge.
Transport of objects and long-distance trade goods, such as amphorae, on a flat-bottomed barge (3dmuseum.eu).
Construction of a late Celtic post-slot wall at the oppidum Heidengraben.
Construction of a late Celtic post-slot wall at the oppidum Heidengraben (3dmuseum.eu).
Gatekeeper of the late Celtic period (around 100 BC) with typical helmet, lance and shield.
Gatekeeper of the late Celtic period (around 100 BC) with typical helmet, lance and shield (3dmuseum.eu).

Station 6

Trade and crafts

As an important economic and trade center, the Heidengraben was a transshipment point for numerous local and long-distance trading goods. Wine from the Mediterranean region was sold here as well as local and regional products or livestock. Celtic coins made of bronze and silver served as payment, but bartering was also common. Remains of craftsmanship bear witness to metalworking and textile production within the settlement.

Celtic bronze and silver coins from the oppidum Heidengraben. The coins served as important means of payment (C. Schwarzer, LAD, RP Stuttgart).
Celtic bronze and silver coins from the oppidum Heidengraben. The coins served as important means of payment (C. Schwarzer, LAD, RP Stuttgart).
Reconstruction of a marketplace in the “Elsachstadt”. Various merchants and craftsmen offer their goods here
Reconstruction of a marketplace in the “Elsachstadt”. Various merchants and craftsmen offer their goods here (3dmuseum.eu).
Late Celtic smith workshop with double bellows, flue, anvil and typical tools
Late Celtic smith workshop with double bellows, flue, anvil and typical tools
(3dmuseum.eu).

Station 7

The way to the east

Located between the two major river systems of Central Europe, the Rhine and the Danube, the Heidengraben played an important role in the long-distance trade network of the late Celtic period. Raw glass and graphite clay which makes ceramics heat-resistant reached the Heidengraben from the east. There are also close connections to the area of today’s Bohemia, where the Boii tribe lived in late Celtic times.

Late Celtic glass beads from the oppidum Heidengraben, which were most likely also produced locally (C. Schwarzer, LAD, RP Stuttgart).
Late Celtic glass beads from the oppidum Heidengraben, which were most likely also produced locally (C. Schwarzer, LAD, RP Stuttgart).
Late Celtic strap tongue from the Heidengraben. The bronze fitting of the strap is an import from Bohemia
Late Celtic strap tongue from the Heidengraben. The bronze fitting of the strap is an import from Bohemia (H. Zwietasch, LMW Stuttgart).
Woman from the Bohemian region, in typical costume of the Celtic Boii with wheel cross pendant and palmette belt hook
Woman from the Bohemian region, in typical costume of the Celtic Boii with wheel cross pendant and palmette belt hook (3dmuseum.eu).

Station 8

Walls and gates

The fortifications of the Heidengraben were once almost 11 km long and had eight gates (A-H). Gate F, south of the “Burrenhof”, was a typical pincer gate of the late Celtic period. The 35 m long gate lane ended at a two-story gate building and was oriented towards the early Celtic burial mounds inside of the settlement. The impressive tumuli served the founders of the Heidengraben as an important place for ancestor worship.

Head of a statuette of Mars, showing the presence of the Romans, 200 years after the Celts at the Heidengraben (C. Schwarzer, LAD, RP Stuttgart).
Head of a statuette of Mars, showing the presence of the Romans, 200 years after the Celts at the Heidengraben (C. Schwarzer, LAD, RP Stuttgart).
Reconstruction of Gate F of the late Celtic oppidum Heidengraben. The gate had probably a two-story gate building
Reconstruction of Gate F of the late Celtic oppidum Heidengraben. The gate had probably a two-story gate building (3dmuseum.eu).
Digital reconstruction of a wooden platform for the laying out of deceased people in late Celtic times
Digital reconstruction of a wooden platform for the laying out of deceased people in late Celtic times
(3dmuseum.eu).

Imprint

Information according to § 5 TMG:
Zweckverband “Region am Heidengraben”
Chairman:
Roland Deh (Mayor of Grabenstetten)
Böhringer street 10
72582 Grabenstetten

Office:
Bürgermeisteramt Hülben
Hauptstraße 1
72584 Hülben

Represented by: Zweckverband “Region am Heidengraben”

The Zweckverband “Region am Heidengraben” is a public corporation.
It is represented by Mayor Roland Deh.

Supervisory authority of the Zweckverband “Region am Heidengraben”:
Landratsamt Reutlingen
Bismarckstraße 47
72764 Reutlingen.

Contact:
Chairman:
Phone: +49(0)7382/941504-0
Fax: +49(0)7382/941504-44
Email: info@grabenstetten.de
Office:
Phone: +49(0)7125/9686-0
Fax: +49(0)7125/9686-20
Email: info@huelben.de

Value added tax:
Sales tax identification number according to §27a of the sales tax law: DE327206310

Dispute resolution

The European Commission provides a platform for online dispute resolution (ODR):
https://ec.europa.eu/consumers/odr.

You can find our email address at the top of the imprint.

We are not willing or obliged to participate in dispute resolution proceedings at a consumer arbitration board.

Liability for content

As a service provider, we are responsible for our own content on these pages under the general laws according to § 7 paragraph 1 TMG. According to §§ 8 to 10 TMG, we are not obligated to monitor transmitted or stored information or to investigate circumstances that indicate illegal activity. Obligations to remove or block the use of information under the general laws remain unaffected. However, liability in this regard is only possible from the point in time at which a concrete infringement of the law becomes known. If we become aware of such infringements, we will remove this content immediately.

Liability for links

Our offer contains links to external websites of third parties, on whose contents we have no influence. Therefore, we cannot assume any liability for these external contents. The respective provider or operator of the pages is always responsible for the content of the linked pages. The linked pages were checked for possible legal violations at the time of linking. Illegal contents were not recognizable at the time of linking.
However, a permanent control of the contents of the linked pages is not reasonable without concrete evidence of a violation of the law. If we become aware of any infringements, we will remove such links immediately.

Copyright

The contents and works created by the site operators on these pages are subject to German copyright law. Duplication, processing, distribution, or any form of commercialization of such material beyond the scope of the copyright law shall require the prior written consent of its respective author or creator. Downloads and copies of this site are only permitted for private, non-commercial use.
Insofar as the content on this site was not created by the operator, the copyrights of third parties are respected. In particular, third-party content is identified as such. Should you nevertheless become aware of a copyright infringement, please inform us accordingly. If we become aware of any infringements, we will remove such content immediately.

Imprint – Community of Grabenstetten:

Exclusion of liability for cross-references
As content provider, the municipality of Grabenstetten is responsible for its “own content”, which it makes available for use, in accordance with general laws. A distinction must be made between this own content and cross-references (“links”) to content provided by other providers. By means of the cross-reference, the municipality of Grabenstetten provides “third-party content” for use, which is identified as such by colored marking. It is only responsible for this external content if it has positive knowledge of it (i.e. also of illegal or punishable content) and if it is technically possible and reasonable for it to prevent its use.

Links

However, “links” are always “living” (dynamic) references. The municipality of Grabenstetten has checked the external content for possible civil or criminal liability when the link was first created. However, it is not obliged to constantly check the content to which it refers in its offer for changes that could give rise to a new responsibility. Only if it determines or it is pointed out by others that a concrete offer, to which it has provided a link, could trigger a civil or criminal liability, it will remove the link to this offer, insofar as this is technically possible and reasonable. The technical possibility and reasonableness shall not be influenced by the fact that even after access from the homepage of the municipality of Grabenstetten has been prohibited, the illegal or criminal offer can be accessed from other servers.

Acceptance of encrypted electronic mail

For technical and organizational reasons, the municipality of Grabenstetten is currently unable to decrypt encrypted emails. If you wish to send us confidential information, please use letter post for this purpose.

Acceptance of signed electronic mail

Unfortunately, for technical and organizational reasons, the municipality of Grabenstetten is currently unable to check electronic signatures for authenticity and validity. We are currently unable to receive either encrypted or signed electronic mail. As a result, you cannot send documents that are subject to a written form requirement, i.e. a personal signature, in electronic form. In these cases we therefore ask you to use paper-based communication.

Content & operation

Zweckverband “Region am Heidengraben”
with its registered office in Grabenstetten,
represented by Mayor Roland Deh
Böhringer Street 10
72582 Grabenstetten
Phone: +49(0)7382/941504-0
Fax: +49(0)7382/941504-44
Email: info@grabenstetten.de

The Zweckverband “Region am Heidengraben” is a public corporation.
It is represented by mayor Roland Deh. Responsible for the content according to TMG:
Roland Deh (address as above).

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Privacy policy

1. Data protection at a glance

General information

The following information provides a simple overview of what happens to your personal data when you visit our website. Personal data is any data that can be used to identify you personally. For detailed information on the subject of data protection, please refer to our data protection declaration listed below this text.
Data collection on our website

Who is responsible for data collection on this website?

Data processing on this website is carried out by the website operator. You can find his contact details in the imprint of this website.

How do we collect your data?

On the one hand, your data is collected by you providing it to us. This can be, for example, data that you enter in a contact form.

Other data is collected automatically by our IT systems when you visit the website. This is mainly technical data (e.g. Internet browser, operating system or time of page view). This data is collected automatically as soon as you enter our website.

What do we use your data for?

Some of the data is collected to ensure error-free provision of the website. Other data may be used to analyze your user behavior.

What rights do you have regarding your data?

You have the right to receive information about the origin, recipient and purpose of your stored personal data free of charge at any time. You also have a right to demand the correction, blocking or deletion of this data. For this purpose, as well as for further questions on the subject of data protection, you can contact us at any time at the address given in the imprint. Furthermore, you have the right to lodge a complaint with the competent supervisory authority.

You also have the right to request the restriction of the processing of your personal data under certain circumstances. For details, please refer to the privacy policy under “Right to restriction of processing”.

2. General notes and mandatory information

Data protection

The operators of these pages take the protection of your personal data very seriously. We treat your personal data confidentially and in accordance with the statutory data protection regulations and this data protection declaration.

When you use this website, various personal data are collected. Personal data is data with which you can be personally identified. This privacy policy explains what data we collect and what we use it for. It also explains how and for what purpose this is done.

We would like to point out that data transmission on the Internet (e.g. when communicating by email) can have security gaps. Complete protection of data against access by third parties is not possible.

Note on the responsible office

The responsible body for data processing on this website is:

Bürgermeisteramt Hülben
Hauptstraße 1
72584 Hülben

Phone: +49(0)7125/96860
Email: info@huelben.de

The responsible party is the natural or legal person who alone or jointly with others determines the purposes and means of the processing of personal data (e.g. names, email addresses or similar).

Revocation of your consent to data processing

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Right to object to data collection in special cases and to direct advertising (Art. 21 DSGVO)

If data processing is carried out on the basis of Art. 6(1)(e) or (f) DSGVO, you have the right to object to the processing of your personal data at any time on grounds relating to your particular situation; this also applies to profiling based on these provisions. The respective legal basis on which processing is based can be found in this privacy policy. If you object, we will no longer process your personal data concerned unless we can demonstrate compelling legitimate grounds for the processing which override your interests, rights and freedoms, or the processing serves the purpose of asserting, exercising or defending legal claims (objection under Article 21(1) DSGVO).

If your personal data is processed for the purpose of direct marketing, you have the right to object at any time to the processing of personal data concerning you for the purpose of such marketing; this also applies to profiling, insofar as it is related to such direct marketing. If you object, your personal data will subsequently no longer be used for the purpose of direct marketing (objection pursuant to Art. 21 (2) DSGVO).

Right of appeal to the competent supervisory authority

In the event of violations of the GDPR, data subjects shall have a right of appeal to a supervisory authority, in particular in the Member State of their habitual residence, their place of work or the place of the alleged violation. The right of appeal is without prejudice to any other administrative or judicial remedy.

Right to data portability

You have the right to have data that we process automatically on the basis of your consent or in performance of a contract handed over to you or to a third party in a common, machine-readable format. If you request the direct transfer of the data to another responsible party, this will only be done insofar as it is technically feasible.

SSL or TLS encryption

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Information, blocking, deletion and correction
Within the framework of the applicable legal provisions, you have the right at any time to optain free information about your stored personal data, its origin and recipient and the purpose of data processing and, if necessary, a right to correction, blocking or deletion of this data. For this purpose, as well as for further questions on the subject of personal data, you can contact us at any time at the address given in the imprint.

Right to restriction of processing

You have the right to request the restriction of the processing of your personal data. To do this, you can contact us at any time at the address given in the imprint. The right to restriction of processing exists in the following cases:
– If you dispute the accuracy of your personal data stored by us, we usually need time to verify this. For the duration of the review, you have the right to request the restriction of the processing of your personal data.
– If the processing of your personal data has happened / is happening unlawfully, you can request the restriction of data processing instead of deletion.
– If we no longer need your personal data, but you need it to exercise, defend or assert legal claims, you have the right to request the restriction of the processing of your personal data instead of erasure.
– If you have lodged an objection pursuant to Art. 21 (1) DSGVO, a balancing of your and our interests must be carried out. As long as it has not yet been determined whose interests prevail, you have the right to request the restriction of the processing of your personal data.

If you have restricted the processing of your personal data, this data may – apart from being stored – only be processed with your consent or for the assertion, exercise or defense of legal claims or for the protection of the rights of another natural or legal person or for reasons of an important public interest of the European Union or a Member State.

Objection to advertising emails

The use of contact data published within the framework of the imprint obligation for the transmission of advertising and information material not expressly requested is hereby objected to. The operators of the pages expressly reserve the right to take legal action in the event of the unsolicited sending of advertising information, such as spam emails.

3. Data protection officer

Data protection officer required by law

Comm.ONE
Anstalt des öffentlichen Rechts
Krailenshaldenstrasse 44
70469 Stuttgart
Email: Datenschutz@huelben.de
Phone: +49(0)711/8108-14444

4. Data collection on our website

Server log files

The provider of the pages automatically collects and stores information in so-called server log files, which your browser automatically transmits to us. These are:

browser type and browser version
– operating system used
– referrer URL
– host name of the accessing computer
– time of the server request
– IP address

This data is not merged with other data sources.

The collection of this data is based on Art. 6 para. 1 lit. f DSGVO. The website operator has a legitimate interest in the technically error-free presentation and optimization of its website – for this purpose, the server log files must be collected.

Contact form

If you send us inquiries via the contact form, your data from the inquiry form, including the contact data you provided there, will be stored by us for the purpose of processing the inquiry and in case of follow-up questions. We do not pass on this data without your consent.

The processing of the data entered in the contact form is therefore based exclusively on your consent (Art. 6 para. 1 lit. a DSGVO). You can revoke this consent at any time. For this purpose, an informal communication by email to us is sufficient. The legality of the data processing operations carried out until the revocation remains unaffected by the revocation.

The data you entered in the contact form will remain with us until you request us to delete it, revoke your consent to store it, or the purpose for storing the data no longer applies (e.g. after we have completed processing your request). Mandatory legal provisions – in particular retention periods – remain unaffected.

5. Analysis tools and advertising

Google reCAPTCHA

We use “Google reCAPTCHA” (hereinafter “reCAPTCHA”) on our websites. The provider is Google Inc., 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA (“Google”).

The purpose of reCAPTCHA is to verify whether data entry on our websites (e.g. in a contact form) is made by a human or by an automated program. For this purpose, reCAPTCHA analyzes the behavior of the website visitor based on various characteristics. This analysis starts automatically as soon as the website visitor enters the website. For the analysis, reCAPTCHA evaluates various information (e.g. IP address, time spent by the website visitor on the website or mouse movements made by the user). The data collected during the analysis is forwarded to Google.

The reCAPTCHA analyses run entirely in the background. Website visitors are not made aware that an analysis is taking place.

The data processing is based on Art. 6 para. 1 lit. f DSGVO. The website operator has a legitimate interest in protecting its web offers from abusive automated spying and from SPAM.

For more information on Google reCAPTCHA and Google’s privacy policy, please see the following links: https://www.google.com/intl/de/policies/privacy/ and https://www.google.com/recaptcha/intro/android.html.

6. Plugins and tools

YouTube with enhanced data protection

Our website uses plugins from the website YouTube. The operator of the pages is YouTube, LLC, 901 Cherry Ave, San Bruno, CA 94066, USA.

We use YouTube in extended data protection mode. According to YouTube, this mode means that YouTube does not store any information about visitors to this website before they watch the video. However, the transfer of data to YouTube partners is not necessarily excluded by the extended data protection mode. Thus, YouTube – regardless of whether you watch a video – establishes a connection to the Google DoubleClick network.

As soon as you start a YouTube video on our website, a connection to YouTube’s servers is established. This tells the YouTube server which of our pages you have visited. If you are logged into your YouTube account, you enable YouTube to assign your surfing behavior directly to your personal profile. You can prevent this by logging out of your YouTube account.
Furthermore, YouTube can save various cookies on your end device after starting a video. With the help of these cookies, YouTube can obtain information about visitors to our website. This information is used, among other things, to collect video statistics, improve the user experience and prevent fraud attempts. Cookies remain on your terminal device until you delete them.

If necessary, further data processing operations may be triggered after the start of a YouTube video, over which we have no control.

YouTube is used in the interest of an appealing presentation of our online offers. This represents a legitimate interest within the meaning of Art. 6 (1) lit. f DSGVO.

You can find more information about data protection at YouTube in their privacy policy at: http://www.youtube.com/t/privacy_at_youtube.

Google Web Fonts

This site uses so-called web fonts provided by Google for the uniform display of fonts. When you call up a page, your browser loads the required web fonts into its browser cache in order to display texts and fonts correctly.

For this purpose, the browser you are using must connect to Google’s servers. This enables Google to know that our website has been accessed via your IP address. Google Web Fonts are used in the interest of a uniform and appealing presentation of our online offers. This represents a legitimate interest within the meaning of Art. 6 (1) lit. f DSGVO.

If your browser does not support web fonts, a standard font will be used by your computer.

You can find more information about Google Web Fonts at https://developers.google.com/fonts/faq and in Google’s privacy policy: https://www.google.com/policies/privacy/.

Google Maps

This site uses the map service Google Maps via an API. The provider is Google Inc., 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA.

To use the functions of Google Maps, it is necessary to store your IP address. This information is usually transferred to a Google server in the USA and stored there. The provider of this site has no influence on this data transmission.

The use of Google Maps is in the interest of an appealing presentation of our online offers and an easy location of the places indicated by us on the website. This represents a legitimate interest within the meaning of Art. 6 para. 1 lit. f DSGVO.

More information on the handling of user data can be found in Google’s privacy policy: https://www.google.de/intl/de/policies/privacy/.