The approximately 7 kilometers long and 0.2 to 2 kilometers wide Tunneltal lies on the axis Rahlstedt / Ahrensburg and includes the lowlands in which the Wandse, the Stellmoorer source flow and the Hopfenbach flow.The tunnel valley is completely protected. Actually, these are 2 contiguous nature reserves:The Hamburg part, the nature reserve Stellmoorer Tunneltal, is 202 hectares, the nature reserve Stellmoor-Ahrensburger Tunneltal in Schleswig-Holstein has a surface of 339 hectares. The tunnel valley forms a natural unity with the adjacent nature reserve Höltigbaum. Due to the archaeological and geological uniqueness of this area is particularly worthy of protection.The tunnel valley was formed towards the end of the last ice age (about 15,000 years ago) by the outflowing meltwater, which made its way in a tunnel under the ice. The landscape formed by this is today characterized by Knicks, wet meadows and field crops. With its dry grasslands, rugged forests and wetlands, the Tunneltal valley is an important retreat for endangered plants and animals.The tunnel valley has become known for its unique concentration of prehistoric sites from the early Paleolithic. Excavations by Alfred Rust in the 1930s have produced reindeer hunters' stone, wood and bone implements, as well as large numbers of hunting bag remains.In the northwestern part of the forest Hagen you will find the remains of the medieval castle Arnesvelde, which existed until 1594. In the lowlands of the Hopfenbach lies the walled main castle with its oval ground plan. On a tongue of land projecting from the east into the lowland, there is a spacious outer bailey protected by a section wall and ditch.ahrensburg.de/Wirtschaft-Tourismus/Tourismus/Naherholung/Tunneltal
July 26, 2019
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