Geisingen

Kötach is a river of Baden-Württemberg, Germany. It flows into the Danube in Geisingen.

Wartenberg is a mountain in Baden-Württemberg, Germany. 49°14′N 7°47′E

The Aitrach is a river in Baden-Württemberg, Germany. It is a right tributary of the Danube, which it joins near Geisingen.

Neuhewen is a mountain in Baden-Württemberg, Germany.

Immendingen station is a junction station in Immendingen in the German state of Baden-Württemberg. The Black Forest Railway from Offenburg to Konstanz connects with the Danube Valley Railway from Donaueschingen to Ulm meet at the station. Immendingen is also served by trains on the Wutach Valley Railway, which branches at the neighbouring Hintschingen station via Blumberg to Waldshut; regular passenger services have been restored on the section of the line to Blumberg since 2004 as part of the Ringzug concept. Until the construction of the Tuttlingen-Hattingen (Baden) connecting curve in 1934, Immendingen was also the terminus of trains from Stuttgart running over the Plochingen–Immendingen railway and Stuttgart–Horb railway (Gäubahn).

Immendingen is a municipality in the district of Tuttlingen in Baden-Württemberg in Germany located on the Upper Danube. It is famous for the Danube Sinkhole.

Fürstenberg (Baar) is a mountain of Baden-Württemberg, Germany.

Talheim is a municipality in the district of Tuttlingen in Baden-Württemberg in Germany.

Fürstenberg Castle (German: Burg Fürstenberg or simply Fürstenberg, literally "Prince's Hill") is a castle in Baden-Württemberg, Germany. It is located on the Fürstenberg hill in the Baar region, near the town of Hüfingen. The castle was first mentioned in a deed of 1175 as a possession of the House of Zähringen, which became extinct with the death of Duke Berthold V. Around 1250, his heir Count Henry of Urach made it his residence and thereafter was the first to call himself a Count of Fürstenberg. The castle was devastated in the Thirty Years' War, and it was never rebuilt.

Höwenegg is a mountain of Baden-Württemberg, Germany.

Lupfen is a mountain of Baden-Württemberg, Germany. It is the highest point in the Baar, having its elevation at 977 metres (3,205 ft). The mountain is called "King of the Baar" as it is an outlier. Hohenlupfen Castle was located on this mountain, which is where the Counts of Lupfen had resided for 500 years.

The Danube Sinkhole (German: Donauversinkung or Donauversickerung) is an incipient underground stream capture in the Upper Danube Nature Park. Between Immendingen and Möhringen and also near Fridingen (Tuttlingen), the water of the Danube sinks into the riverbed in various places. The main sinkhole is next to a field named Brühl between Immendingen and Möhringen. The term "sinking" is more accurate than "seeping", because, instead of just distributing into the soil, the Danube's water flows through caverns to the Aachtopf, where it emerges as the river Radolfzeller Aach, a tributary of the Rhine.