Canyons around Glees feature a landscape shaped by volcanic activity and water, creating distinct geological formations. The region is characterized by deep gorges, waterfalls, and rock formations, offering diverse natural exploration. These areas often include former quarries and caves, adding historical and geological interest to the natural environment. The natural features provide opportunities for hiking and discovering unique geological sites.
Last updated: July 10, 2026
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👌🏼🥾🥾It's like a playground for adults - a wildly romantic outdoor feeling 🌊📸 Spectacular trass walls from the former volcanic eruption🌋. 🌊📸A great photo location📸
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You have to leave the Quellenweg for a short while, but it is worth visiting this place.
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About 200,000 years ago, a volcanic vent opened up north of Wehr am Hüttenberg, throwing out loose volcanic material. During and after the eruption, there were violent storms caused by the hot gas column meeting the cold atmosphere. Rainfall combined the volcanic ash, the weathered clay of the Devonian rocks and shattered material into a muddy mass. This mud flow poured through the valley of the Wirrbach towards the Brohltal, sloshed up the Bausenberg slope (the volcanic mountain did not yet exist at that time) and flowed on to Burgbrohl. Source: https://niederzissen.de/die-trasswaende-in-niederzissen/
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Crazy that all this came from a volcanic eruption
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Imposing former quarry with a spectacular gorge-like entrance, at the same time a rustic spot for a picnic, seating with a table - highly recommended!
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The thickness of the trass walls in this region are absolutely impressive. They all come from a single volcanic eruption that ended within a few days or weeks. It's a good thing we weren't there at the time.
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Along the trass walls, you can see the impressive rooting of the deciduous trees. The Romans and later the Dutch dug trass out of the walls to make mortar, which was mixed with water and lime to make mortar. The Dutch used gluing to build dams and harbors.
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The Marxe Lay is a basalt quarry that belonged to the Marx family. The walls of the quarry are 12 meters high. At the very top you can see the remains of a crane house.
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The region around Glees is known for its unique geological formations. Among the most popular are Marxe Lay (former quarry), featuring 12-meter high basalt rock walls, and the Waterfall in the Wolfsschlucht, which offers a distinct jungle-like atmosphere. Another highly regarded spot is the Wolf Gorge Waterfall and Trass Cliffs, a rugged ravine with impressive geological features.
Yes, the Wolfsschlucht Gorge and Tönissteiner Bach Waterfall is particularly noted as family-friendly, offering great rock formations, a jungle atmosphere, and bubbling springs. The Teufelsknochen and Trass Caves, Burgbrohl also provide a wildly romantic experience that can be a highlight for children, though some sections involve a challenging climb secured with ropes.
You'll encounter a landscape shaped by volcanic activity and water. Expect deep gorges, impressive waterfalls, and unique rock formations, including basalt walls from former quarries. The area also features caves and lush, forest-like environments, sometimes described as having a 'jungle atmosphere'.
For highlights like the Waterfall in the Wolfsschlucht and the Wolf Gorge Waterfall and Trass Cliffs, it's often recommended to visit during the week. Weekends can be quite crowded, and the latter is close to a road, so motorcycle noise can be an issue on weekends. Visiting in the morning during the week is ideal for a more tranquil experience.
Visitors frequently highlight the mystical and exciting atmosphere, especially at places like Marxe Lay (former quarry) with its high rock walls. The 'jungle atmosphere' and idyllic settings of waterfalls and gorges, such as the Waterfall in the Wolfsschlucht, are also highly appreciated. The rugged, wild nature and beautiful paths are often mentioned as key attractions.
Yes, some areas offer more challenging experiences. For instance, after exploring the Trass caves at Teufelsknochen and Trass Caves, Burgbrohl, the Volcano and Panorama Trail presents a challenging climb, with some sections secured by ropes.
Beyond exploring the canyons, the region offers diverse outdoor activities. You can find numerous mountain hiking routes, such as those around Lake Laach. For cyclists, there are road cycling routes and gravel biking trails that explore the scenic landscapes.
Yes, the region's volcanic past is evident in many formations. Marxe Lay is a former basalt quarry, offering insight into historical mining activities and geological processes. The Teufelsknochen and Trass Caves are remnants of cooled lava courses, showcasing the area's volcanic origins.
While specific public transport details for each canyon are not provided, many trails and natural highlights in the region are generally accessible. It's advisable to check local transport schedules and routes to the trailheads for the specific canyon you plan to visit.
Given the rugged terrain and potential for challenging sections, sturdy hiking shoes are essential. Depending on the weather, rain gear and layers are recommended. For longer hikes, bring water and snacks. If you plan to explore areas with ropes, appropriate gear for that activity would be necessary.
Many natural areas and hiking trails in the region are dog-friendly. However, it's always best to check specific regulations for each highlight or trail, especially for areas that might involve challenging climbs or crowded conditions, to ensure a safe and enjoyable experience for both you and your pet.


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