Delta de la Sauer National Nature Reserve, National nature reserve in Bas-Rhin, France
The Delta de la Sauer spans 486 hectares of wetlands between Seltz and Munchhausen communes, where the Sauer River flows into the Rhine River.
The landscape underwent major transformations in 1845 when river management efforts modified the natural meanders of the Sauer Delta and affected flooding patterns.
The white willow forest, managed through traditional pollarding techniques, represents a long-standing practice of local environmental stewardship in the Alsace region.
Eight distinct ecosystems within the reserve provide visitors opportunities to observe 183 bird species, including 77 nesting varieties, through designated walking paths.
The reserve contains one of France's few reproduction sites for field frogs and hosts an extraordinary population of brown pelobates, rarely found elsewhere in the country.
Location: Bas-Rhin
Inception: September 2, 1997
GPS coordinates: 48.90810,8.13389
Latest update: June 23, 2025 11:08
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