Best natural monuments around Uersfeld are primarily shaped by the region's volcanic past, offering insights into its geological history. Uersfeld is nestled within the Eifel, a landscape rich in natural features. Visitors can explore a variety of volcanic formations, maars, and other geological wonders. This area provides a unique glimpse into the Eifel's natural heritage.
Last updated: June 24, 2026
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The Ulmen Maar lies 420 meters above sea level today, covers an area of 5.5 hectares, and is 36 meters deep. The bubbles at the maar's edge demonstrate that volcanism is still active. They bear witness to a turbulent past—but rest assured, there's no eruption in sight! A wall of various rocks and ash, up to 20 meters thick, surrounds the cone. For those interested, these testimonies to this explosive past are beautifully displayed in St. Matthias Church. This unique wall, with its different colored layers and rounded inclusions, is worth seeing for more than just geologists. The slopes of the maar basin are covered with a beautiful forest, which can be explored on a circular walk. A detour to the medieval castle ruins, from which the Crusaders once launched their campaigns, is recommended. The view from the crater rim over the maar and the Eifel beyond will take your breath away. Whether after a sweaty hike or a long drive, the blue of the Ulmer Eifel lake is all too tempting in summer. However, bathing in the maar is prohibited because it is designated as a nature and water protection area.
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The lower castle has completely disappeared. You can still see the beginning of the ring that connected the lower castle and the Ulmen city wall, a two-story outer wall of the palace, as well as a cistern and some foundation walls of other buildings. The old part of Ulmen Castle was built around 1074 AD and likely rests on the remains of a Roman settlement. In the Middle Ages, Ulmen Castle was further expanded and divided into the upper castle, whose remains of the walls still exist, and the lower castle, which extended to the banks of the maar river. Two knightly families lived in the castle, which is believed to have never been attacked or destroyed until 1673 due to its size. Only the Sun King's troops succeeded. It was rebuilt, but fell again in 1689 during the War of the Succession. However, Ulmen Castle was also rebuilt this time, with only the city wall being abandoned. With the invasion of Napoleon's soldiers, Ulmen also became French and later Prussian. The empty castle, whose last descendant died in 1801, was auctioned to a merchant from Cochem, who sold it as a quarry. When a devastating fire burned Ulmen to the ground in the 19th century, the residents of Ulmen rebuilt their houses with stones from the castle. That's why you can still see a coat of arms on some of the stables today. It wasn't until the early twentieth century that Ulmen Castle was declared a listed building and became the property of the municipality of Ulmen. The castle is always freely accessible.
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The Ulmener Maar is small but beautiful. Located in the middle of the Eifel and in the middle of the city, it is a wonderful destination. You can easily combine a walk around the maar with a walk around the neighboring Jungferweiher. Both have recently been connected by the Ulmener Maar tunnel, which runs under the A 48 motorway.
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The egg-shaped ejected particles are 6 cm or larger and deform the layers of earth when impacted. They are clearly visible here on the rock walls.
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A visit is worthwhile both in summer and in winter. However, the Ulmener Maar is a nature reserve, which is why bathing is strictly forbidden here!
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Here the Endertbach falls 7 meters to the valley. The waterfall, the so-called "Rausch", is next to the old mills the most beautiful highlight of our hike through the Enderttal. Really worth seeing.
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The upper castle was built on a slope above the Ulmen maar, while the lower castle (also called lower castle) was adjacent but below it. The exact time of construction is not known, but it is assumed that the upper castle was built around the year 1000. It was first mentioned in a document in 1074. The ruins of the upper castle are owned by the municipality of Ulmen and in 1913 were listed as a historical monument. It is freely accessible and there are regular events on its premises, including an annual medieval market on the last weekend in June. Source: Wikipedia
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Beautiful waterfall in the valley. Nice place to take a break.
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The Uersfeld area, nestled in the volcanic Eifel region, is rich in natural monuments shaped by its geological past. You'll find striking maars (volcanic lakes), such as the Ulmener Maar, and impressive volcanic formations like the Boos Lava Bomb. There are also beautiful waterfalls like The Rausch Waterfall, and unique ecosystems around places like the Mosbrucher Weiher, a maar transforming into a peat bog.
Yes, the region is defined by its volcanic history. You can explore the Boos Lava Bomb, where explanatory panels detail geological events. The Ulmener Maar is one of the youngest Eifel maars, and the Weinfelder Maar (Totenmaar) near Daun offers a profound glimpse into the earth's explosive past. The Hochkelberg, a former stratovolcano, also provides unique insights into the Eifel's volcanic heritage.
For panoramic views, consider visiting the Boos Eifel Observation Tower, which offers expansive vistas of the Eifel, including the Nürburgring and Hohe Acht on clear days. The Dronke Tower near Weinfelder Maar also provides sweeping views. Additionally, the summit of Hochkelberg offers a classic 'Eifel view' of the surrounding region, and the Upper Castle of Ulmen provides a beautiful perspective over Ulmen and the maar.
Absolutely! Many natural monuments are suitable for families. The Rausch Waterfall is a lovely spot for a short rest. The Boos Lava Bomb is interesting for children, with its educational panels. The Ulmener Maar and its surroundings, including the nearby Upper Castle of Ulmen, are also great for family outings.
The volcanic Eifel region offers diverse outdoor activities. You can explore numerous hiking trails, including sections of the 'Volcano Trail' which highlights the region's geology. For running, check out the Running Trails around Uersfeld, with routes like the 'Heilbachsee – Bergkrone Mine Tunnel loop'. Cyclists can find options in the Road Cycling Routes around Uersfeld, and gravel biking enthusiasts can explore routes like the 'Ulmener Maar – Ulmener Maar Tunnel loop' from the Gravel biking around Uersfeld guide.
Yes, the area is excellent for hiking. The 'Volcano Trail' network offers routes through fascinating volcanic landscapes, showcasing basalt formations and maar lakes. You can also find specific routes like the 'Observation Tower Vulkaneifel – Grüner Weiher loop' for jogging, which can be adapted for hiking. Paths around the Weinfelder Maar and the Mosbrucher Weiher also provide tranquil walking experiences.
The region blends natural beauty with history. Near the Weinfelder Maar, you'll find a small chapel dedicated to St. Martin, which was once a parish church, and an adjacent cemetery still in use. The Upper Castle of Ulmen, a knight's castle from the 11th century, sits on the southern edge of the Ulmener Maar. Remains of Roman buildings have also been discovered on the Hochkelberg.
Visitors frequently appreciate the unique geological insights and the tranquil atmosphere. For instance, the Rausch Waterfall is praised as a beautiful spot for a break. The Boos Lava Bomb is valued for its informative panels explaining earth's history. The stunning views from places like the Boos Eifel Observation Tower are also a major draw, offering a fantastic perspective of the Eifel landscape.
Yes, the natural monuments, particularly the maars and bogs, are home to diverse ecosystems. The Mosbrucher Weiher, for example, is a natural reserve protecting sensitive habitats for rare and endangered plant and animal species adapted to volcanic and bog environments. The Jungferweiher, a silted-up maar north of Ulmener Maar, is a bird sanctuary where rare and endangered birds can be observed.
Many natural monuments in the Vulkaneifel region are accessible year-round, offering a different kind of beauty in winter. While some paths might be more challenging with snow or ice, places like the Boos Lava Bomb and the maars can be a unique experience. Always check local conditions and dress appropriately for cold weather.
Beyond the well-known sites, the broader Vulkaneifel district holds many less-trafficked spots. The Mosbrucher Weiher, a maar gradually transforming into a peat bog, offers a unique insight into ongoing natural processes and a delicate ecosystem. Its carefully laid-out gangplanks allow for observation without disturbing the environment, making it a special, quieter experience.
The Weinfelder Maar, also known as Totenmaar (Lake of the Dead), is a significant natural monument near Daun, showcasing the Vulkaneifel's explosive past. It's one of the deepest maars in the region, formed by a volcanic steam explosion. It's a nature reserve where swimming is prohibited to protect its unique flora and fauna. Its historical chapel and the many legends surrounding it add to its almost melancholic atmosphere and allure.


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