Best caves around Thomm are primarily historical slate mines, offering a unique glimpse into the region's industrial past. Thomm, situated in a historically significant mining area, features several accessible underground sites. These locations provide insights into traditional slate extraction techniques and the lives of miners. The area's terrain is characterized by these former mining landscapes, which are often integrated into local hiking routes.
Last updated: May 15, 2026
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This is where you come out after the tour through the visitor mine.
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Walkable slate tunnel, information board and a nice picnic area, don't forget your flashlight
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That's great. Don't forget to take a flashlight with you
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Remember the flashlight... it's worth it
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Simply an experience for young and old. Visit the mine!
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Interesting information about the slate tunnel, up to 10m accessible
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From a topological point of view, the Thommen mining area is very homogeneous, since the mining areas did not develop depending on the epoch, but the mining centers remained topologically the same over the entire funding period. The origins of Thommen slate mining can be found in the area of the Sattelberg. At least since the end of the 17th century, two main mining areas were important for Thommen slate mining. On the one hand the districts "Heckenberg" and "Hesselnbüsch" bordering on the district "Sattelberg" and the adjacent district "An der Köpp", on the other hand the actual "Thomerberg" with the adjacent district "Brasilienberg". Until the commercial restructuring of mining in 1863, these areas remained the main extraction areas. After 1863, Thommen slate mining concentrated almost exclusively on the "Thomerberg" and the adjoining "Brasilienberg" with the various large mines. Little changed in this constellation until shortly before the First World War. The most productive pits by far, such as the pits "Mertesnaf I", "Mertesnaf II", "Neue Mertesnaf", "Mertesnafergraben" and "Alte Graebenkaul" were located on the natural border between Thommerberg and Brazil Mountain, the so-called "Mertesnafgraben". .
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From a topological point of view, the Thommen mining area is very homogeneous, since the mining areas did not develop depending on the epoch, but the mining centers remained topologically the same over the entire funding period. The origins of Thommen slate mining can be found in the area of the Sattelberg. At least since the end of the 17th century, two main mining areas were important for Thommen slate mining. On the one hand the districts "Heckenberg" and "Hesselnbüsch" bordering on the district "Sattelberg" and the adjacent district "An der Köpp", on the other hand the actual "Thomerberg" with the adjacent district "Brasilienberg". Until the commercial restructuring of mining in 1863, these areas remained the main mining areas. After 1863, Thommen slate mining concentrated almost exclusively on the "Thomerberg" and the adjoining "Brasilienberg" with the various large mines. Little changed in this constellation until shortly before the First World War. The most productive pits by far, such as the pits "Mertesnaf I", "Mertesnaf II", "Neue Mertesnaf", "Mertesnafergraben" and "Alte Graebenkaul" were located on the natural border between Thommerberg and Brazil Mountain, the so-called "Mertesnafgraben". .
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Near Thomm, you can explore both historical slate mines and natural caves. The immediate Thomm area features several accessible historical slate mines, such as the Barbara-Hoffnung Slate Mine and the Walk-In Slate Mine. A short drive away, in the Kordel area, you'll find natural sandstone caves like the Genovevahöhle and Klausenhöhle, as well as the ancient Roman copper mine and quarry, Pützlöcher.
Yes, the region around Kordel, a short drive from Thomm, offers two notable natural caves. The Genovevahöhle is a legendary sandstone cave with a unique shell-shaped form, used by humans since the Paleolithic era. The Klausenhöhle, also known as the Hermitage Cave, is a cleft cave with a distinctive arch, believed to have been inhabited by a hermit in the 18th century.
Absolutely. Thomm is known for its historical slate mines. You can visit sites like the Grube Barbara Mine, which offers a visitor experience, and the Barbara-Hoffnung Slate Mine. Further afield, near Kordel, the Pützlöcher is an ancient Roman copper mine and quarry, considered one of Germany's oldest, offering a glimpse into Roman mining techniques.
The Grube Barbara Mine is highlighted as a family-friendly experience. The Walk-In Slate Mine is also accessible for up to 10 meters and provides interesting information. The natural caves like the Genovevahöhle and Klausenhöhle are freely accessible and can be part of family-friendly hikes, though some sections of trails might be challenging for very young children.
Many of the caves and mines, particularly the Pützlöcher, Genovevahöhle, and Klausenhöhle near Kordel, are integrated into well-known hiking trails. They are key stops along the 'Römerpfad' (Roman Path) and Stage 15 of the Eifelsteig premium hiking trails, offering a combination of nature and history.
The Pützlöcher is an ancient Roman copper mine and quarry, dating back to the 2nd century. Romans mined copper ores here and later extracted stones for significant constructions, including Trier's Porta Nigra. It offers a unique insight into ancient Roman mining and quarrying techniques and their impact on the region.
The Genovevahöhle is unique for its captivating local legend about Countess Genoveva, who is said to have sought refuge there. Naturally, its impressive shell-shaped sandstone formations, created by millions of years of erosion, and archaeological finds from the Paleolithic, Roman, and medieval periods also make it a significant site.
At the Klausenhöhle, you can explore a cleft cave believed to have been inhabited by an 18th-century hermit. You'll notice evidence of a two-story living space, with holes for wooden beams. Intriguing primitive faces are engraved around a natural window and on the outer walls, thought to have served exorcistic purposes.
Exploring the Pützlöcher, Genovevahöhle, and Klausenhöhle near Kordel can be done as part of a longer hiking tour. These three sites are often visited together along the 'Römerpfad' or Eifelsteig, which can take several hours to a full day depending on your pace and the chosen route length.
Yes, the area around Thomm offers various outdoor activities. You can find numerous routes for gravel biking, road cycling, and mountain biking. These routes often pass through scenic landscapes and offer different difficulty levels, from easy to challenging.
The natural caves like the Genovevahöhle and Klausenhöhle are freely accessible year-round. However, for comfortable hiking conditions and to fully enjoy the surrounding scenic forest areas, the best time to visit is typically from April to October.
When visiting the slate mines, especially the Walk-In Slate Mine, it's recommended to bring a flashlight as it can be dark inside. For any cave exploration or hiking, wear appropriate footwear, and consider bringing water and snacks. For guided mine tours, specific equipment might be provided or required.


Extend your search for the best caves by checking out these guides of the top ones around Thomm: