Natural monuments around Obersimten are characterized by unique sandstone formations in the German state of Rhineland-Palatinate. This region offers dramatic landscapes and opportunities for outdoor activities like hiking. The area features a variety of geological formations, including towering rocks, natural arches, and caves. These sites provide a chance to explore the natural beauty and geological history of the Palatinate Forest.
Last updated: July 10, 2026
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In the early morning or evening, the light is particularly beautiful and it is quieter. We were there at midday, so the light, depending on the location, was sometimes more intense or paler on the rocks. Nevertheless, a great nature experience. Sturdy footwear is recommended.
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The Altschlossfelsen (also known as Eppenbrunn Castle) are a group of red sandstone rocks designated as a natural monument (ND) ND-7340-205 and a cultural monument (KD) in the municipality of Eppenbrunn in the Palatinate Forest on the border with France, and are the largest rock formation in the Palatinate. They are located on the eastern slope of the Brechenberg (406 m) near Eppenbrunn and Roppeviller at an elevation of approximately 365 m above sea level at the northeast end and 380 m above sea level at the southwest end of the rock band. The Altschlossfelsen are a group of red sandstone rocks approximately one and a half kilometers long and up to 30 meters high. The group consists of sandstone towers and walls. The Altschlossfelsen are crisscrossed by cracks and joints, some of which are wide enough to climb through. They are known primarily for their diverse weathering phenomena and rare lichens. The summit plateau can be reached from the north and south on narrow paths. There, you'll find a sparse forest and moss-covered rocks. A special lighting situation created by the sun, the "rock glow," is best seen around 7:00 p.m. in the first half of April, depending on weather conditions, vegetation, and the position of the sun. In the morning hours, the glow occurs around 8:45 a.m. Finds from the Hallstatt and Roman periods attest to earlier settlement of the rock group. In 1964, for example, shards from the La Tène period (c. 450–50 BC) were found. Traces of a medieval castle from the 11th or 12th century are found on the four main rocks. These include the remains of a stepped structure, post holes, remains of masonry, and notches for beams in the rock. A depression with a diameter of four meters is located on a rock, which may have served as a cistern. Additionally, on the southern and northern slopes around the rock formation, humped blocks, which may have originated from the structure of a former castle, as well as shards from the High Middle Ages were found in a wall groove. A more precise dating of the castle complex is difficult, as the castle was not mentioned before 1297 or later in the 1605 border description between Lorraine and the County of Hanau-Lichtenberg. Source: https://de.wikipedia.org/wiki/Altschlossfelsen
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A beautiful hiking trail along the historic rock formations near the border
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A very beautiful path directly along the rocks.
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Largest connected group of rocks north of the Alps, approx. 1.5 km long and over 30 meters high. A must-see
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There are many beautiful, impressive spots on the Altschlosspfad. Here is another one that is worth taking a closer look at 🤩
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Very interesting rock formation, take your time. Don't forget sturdy shoes 😎
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Great hiking trail… no need to duck your head here…. And yet… look up
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The region around Obersimten is renowned for its dramatic landscapes dominated by unique sandstone formations. You'll encounter towering rock formations, natural arches, and caves, primarily composed of orange-red Buntsandstein. These geological features have been sculpted by weather over millennia, creating bizarre and intricate shapes.
Yes, several natural monuments are suitable for families. The Upper Bear Cave is described as a place with much to discover, not just for children, offering benches and tables for resting. The Brothers' Rock, Rodalben is also noted as family-friendly.
Among the most popular natural monuments are the spectacular Altschloss Rocks, stretching 1.5 kilometers with formations up to 30 meters high. Visitors also highly rate the Upper Bear Cave, a large rock with a well, and the imposing Rock arch on the Felsenwald Premium Trail, a natural breakthrough in red sandstone.
Absolutely. Many natural monuments are integrated into hiking routes. For instance, the Altschloss Rocks are part of the circular Altschlosspfad trail. The Rock arch on the Felsenwald Premium Trail is directly on the signposted Premium Trail. You can find various hiking options in the area by exploring the Hiking around Obersimten guide.
Yes, some trails are dog-friendly. The Altschlosspfad, which leads through the grandiose landscape of the Altschloss Rocks, is well-suited for dogs, provided they are leashed.
Visiting in the evening is particularly rewarding, especially for the Altschloss Rocks, as the setting sun creates an intense play of colors on the orange-red Buntsandstein. The Brothers' Rock, Rodalben is also illuminated in the evening.
Yes, the Altschloss Rocks are not only visually striking but also historically significant. Evidence of early settlement from the Hallstatt and Roman periods, as well as remnants of an 11th or 12th-century fortification, have been found on the main rocks.
Beyond hiking, the Obersimten area offers opportunities for cycling. You can explore various routes for gravel biking or mountain biking, with trails ranging from easy to challenging.
Visitors frequently praise the spectacular rock formations and the unique patterns carved into the sandstone by natural erosion. Many appreciate the opportunities for rest at spots like the Upper Bear Cave and Schiller Wall, and the intense play of colors on the rocks, especially during sunset.
Yes, the Rock arch on the Felsenwald Premium Trail is easily accessible year-round. It is located near the Beckenhof forester's house and can be reached by following the signposted Premium Trail.
The Altschloss Rocks are particularly impressive, stretching for approximately 1.5 kilometers and reaching up to 30 meters in height. The Brothers' Rock, Rodalben also stands out as a symbol of the town, with two sand pillars formed by weather and erosion.


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