The sinter terraces are formed by the 'Cratoneurion' moss community, which acts as a filter to precipitate limestone from the stream water.
The Lilling stream flows primarily through the karst rock of the Franconian Alb, absorbing high levels of calcium carbonate.
The 'sinter' material is a porous rock type known as travertine or tufa.
The terraces have been actively growing for approximately 10,000 years, since the end of the last ice age.
The area is a designated 'Biotop' under strict Bavarian environmental protection laws.
The Kalksinterterrassen im Lillachtal are unique geological limestone sinter formations created by the Lillach stream as it flows over mossy stone steps. These natural terraces were designated a National Geotope in 2006 due to the rare precipitation of calcium carbonate by algae and mosses. The water cascades down a series of travertine steps spanning several hundred meters through the Lillachtal valley. The site is a fragile ecosystem that relies on the precise chemical balance of the stream water. Visitors follow a designated path along the stream to observe the buildup of sinter, which occurs continuously as the water releases carbon dioxide. The terrain consists of natural forest paths and wooden footbridges. This site is a protected natural monument located within the Franconian Switzerland region of Bavaria. It is not a zoo, despite the database classification, but a protected geological park.
From the wooden bridge crossing the mid-section of the terraces, looking upstream toward the most prominent steps.
Stay strictly on the marked wooden walkways to prevent damage to the delicate, porous limestone structures.
Bring waterproof footwear if visiting after rainfall, as paths can become muddy.
Plan your visit to coincide with bright, indirect sunlight to best capture the contrast between the green moss and white limestone.
Attempting to climb or walk directly on the mossy terraces, which destroys centuries of geological growth.
The area is a public forest trail accessible year-round, though paths may be difficult to traverse during heavy snowfall or icy conditions.
Do not enter the water or step on the sinter formations; leave no trash behind.
