Niedaltdorfer Tropfsteinhöhle

Tufa Cave of Niedaltdorf

Useful Information

Location: A8 exit Rehlingen, durch Siersburg, dann in Richtung Grenze nach Frankreich, 5km, rechts ab durch Rehlingen-Niedaltdorf. Zwischen Niedaltdorf and Grenze rechts der Straße.
Open: MAY to OCT Tue-Sat 10-12, 14-17, Sun, Hol 10-12, 14-18.
Fee: Adults EUR 3.50, Children EUR 2.50.
Groups (+): Adults EUR 3, Children EUR 2.
Classification: Explaintufa cave, Explainprimary cave,
Light: electric
Dimension: L=120m
Guided tours: L=80m
Bibliography: Loeser, R. (1934): Die Niedaltdorfer Tropfsteinhöhle, Rhein. Heimatpfl. Jg. 6, 1934 (Deutsch - German)
Rücklin, H. (1940): Die Tropfsteinhöhle von Niedaltdorf, Westm. Abh, z. Landes- und Volksforschung, Bd. 4, 1940 (Deutsch - German)
Britz, K. (1952): Wie ist die Niedaltdorfer Tropfsteinhöhle?, Saarl. Volksztg. Nr. 4, 7.1.1952 (Deutsch - German)
Müller, E. (1963): Die Tropfsteinhöhle in Niedaltdorf, Heimatk. Jahrbuch d. Kr. Saarlouis, 1961-1963 (Deutsch - German)
Address: Tropfsteinhöhle Niedaltdorf, Gerhard Bräscher, Neunkircher Str. 10, 66780 Rehlingen-Siersburg (OT Niedaltdorf), Tel: +49-6833-1653.
As far as we know this information was accurate when it was published (see years in brackets), but may have changed since then.
Please check rates and details directly with the companies in question if you need more recent info.


1880 first parts discovered, when the Restaurant "Zur Tropfsteinhöhle" was built.
1927 discovered again during renovation works in the cellar.
1928 Willi Biehl builds a staircase and an adit and discovers the longer east branch.
1933 development, round trip completed and electric light installed.
1937 protected by law as a natural monument.


The Niedaltdorfer Tropfsteinhöhle is a Explaintufa cave, and belongs to the rather rare Explainprimary caves.

It is a 200m long, 40m wide and 8m high deposit of tufa aka sweetwater limestone. This deposit was formed during the last 18,000 years at the spring of a limestone rich brook, a trubutary of the Nied. The town Niedaltdorf is built on top of this tufa deposit, only a few hundred meters from the French border. The Tufa Cave of Niedaltdorf was formed when the tufa was deposited, because of irregular growth of the limestone. Waterfalls, pools, overhanging rims and later shallow caverns were formed. ABout 8,000 years ago some of those overhangs were closed by growing limestone and so the cave was formed.

The German name Tropfsteinhöhle (dripstone cave) is normally used for caves with many dripstones inside. But here it is used in another way: the rock the cave is in, is dripstone. When it is built it is covered by a brook, and it is dripping all over. This tufa is built similar to dripstone, but on the surface.

Niedaltdorfer Tropfsteinhöhle Gallery