Tal der Langballigau, Protected area in Dollerup, Langballig, and Westerholz, Germany.

The Tal der Langballigau is a nature reserve featuring a deep stream valley where the Langballigau river winds through the landscape with its tributaries Schulau and Schiebek. The terrain combines open grasslands with wetland zones that shift with the seasons.

The protected area was officially established in 1990 and contains a large burial mound field documented by regional archaeological authorities. These findings reveal that the valley has been inhabited and used since prehistoric times.

The valley's wet meadows are kept open by extensive grazing with robust cattle, a management measure introduced after the area was protected rather than an age-old tradition. The animals push back reeds and scrub so that wet grassland survives as habitat. Several hiking trails cross the reserve, which is looked after by the nature conservation association in the Amt Langballig.

The reserve can be accessed via Kreisstraße 97 near Langballigholz at the point where the Langballigau flows into the Flensburger Förde inlet. Be prepared for wet and muddy ground in the lower valley sections, especially during wetter periods.

A large burial mound field lies within the reserve, recorded by the Schleswig-Holstein State Archaeology Office under monument number aKD-ALSH-004051. The mounds sit on the saltwater-influenced grassland in the north, so the protected valley holds both a prehistoric cemetery and a wetland habitat.