Frau-Nauses-Tunnel, Railway tunnel in Groß-Umstadt and Höchst im Odenwald, Germany
The Frau-Nauses-Tunnel is a 1205-meter-long railway passage that winds through sandstone formations in the Odenwald region and connects two mountain slopes. It was built as a single-track line and continues to serve as an important transportation route between the region and the Rhine-Main area.
The tunnel began construction in September 1868 as part of a rail connection and officially opened on December 24, 1871. The building phase was marked by accidents and tragedies during the excavation work.
The tunnel portals show stonework from the 19th century, especially at the southern entrance with a decorative crown above the arch. These crafted details catch visitors' eyes and reflect the work of the builders of that era.
The tunnel is accessible from outside and can be explored by hikers and cyclists along the railway line. Both entrances are easy to find and offer good photo opportunities, especially at the elaborately decorated portals.
The tunnel runs underground between two different administrative districts, with the northern portal located in the former Frau-Nauses area. This border location makes it a curious point for understanding the historical division of the region.
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