Best natural monuments around Memmingerberg are situated in a region characterized by its proximity to the Iller River and the geological formations left by the last ice age. This area offers a diverse natural landscape, including unique wetlands and ancient tree avenues. Visitors can explore various natural features, from significant nature reserves to distinctive rock formations. The municipality serves as a starting point for discovering these ecological and geological sites.
Last updated: July 8, 2026
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Tulip tree avenue flowering period June/July
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Update: The path was reopened today, Monday, October 7th, 2024 by the municipality of Wolfertschwenden. The municipality of Wolfertschwenden has temporarily closed the path at the Geological Organs, as of May 8th, 2024: https://wolfertschwenden.orts.app/wegereparatur-dringend-notwendig-voruebergehende-wegsperrung_Y0FU
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Kneipp facility available to cool your feet.
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Near Memmingerberg, you can explore the Geological Organs (Nagelfluh rock formations). These are vertical cavities formed by the weathering of soft, fine-grained material during the Günz glaciation, over 600,000 years ago. Visitors often describe them as impressive rock formations resembling organ pipes.
Yes, the Benninger Ried Nature Reserve is a notable calc-mire and spring fen, recognized as Bavaria's largest contiguous spring area. It's globally unique as the last remaining habitat for the 'Riednelke' (crimson flowering thrift) and hosts over 90 endangered species. You can explore it via designated paths and a wooden boardwalk leading to an observation platform.
The Lourdes Grotto is a natural monument and cave inaugurated in 1887, inspired by the original Lourdes. It offers a unique blend of natural beauty and cultural significance, often described by visitors as a very nicely laid out spiritual site.
The Iller Reservoir (Illerstausee) is an excellent spot for wildlife observation. It is home to many species of birds and fish, providing opportunities to watch the hustle and bustle on the lake from a small rest bench.
Absolutely. The Tulip Tree Avenue in Ferthofen, near Memmingen, is a remarkable natural monument. It features historic tulip trees, some planted as early as 1828, and is considered unique in Germany. It's particularly stunning in June and July when the trees display their distinctive, pastel-colored, tulip-like flowers.
The area around Memmingerberg offers various outdoor activities. You can find numerous hiking trails, including easy loops like the 'Medieval Gravestones – Zehenthaus Memmingerberg loop'. For cyclists, there are gravel biking routes such as the 'Iller Cycle Path – Iller Bridge at Kellmünz loop'. Runners can enjoy running trails like the 'Fischteich - Froschlache loop'.
Yes, several natural monuments are suitable for families. The Benninger Ried Nature Reserve offers an adventure nature reserve experience with information boards, an observation platform, and even a small museum. The Tulip Tree Avenue also has a Kneipp facility and an apothecary garden nearby, providing relaxing and educational opportunities for all ages.
The best time to visit depends on what you wish to see. The Tulip Tree Avenue is particularly stunning during its blooming period in June and July. For general exploration of the nature reserves and geological sites, late spring to early autumn (April to October) offers pleasant weather for outdoor activities.
The Benninger Ried Nature Reserve is special due to its status as Bavaria's largest contiguous spring area and a Natura 2000 site. It's the last remaining habitat for the rare 'Riednelke' and a sanctuary for over 90 endangered species. Its unique geology, shaped by the Iller glacier, creates a pristine ecosystem with ice-age relics like the Alpine butterwort.
Yes, many sites provide historical context. At the Tulip Tree Avenue, an information board details its history and founder, Friedrich von Lupin. The Geological Organs also have an information board explaining their formation during the Günz glaciation. The Benninger Ried Nature Reserve has a small museum at its entrance that provides insights into its ecology and conservation efforts, including the story of its rescue.
While the Geological Organs (Nagelfluh rock formations) might be less known than some other regional attractions, visitors appreciate them for their unique formations and the quiet atmosphere, often noting that there are hardly any people around. An information board explains the natural phenomenon in detail.


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