Hohentwiel
Hohentwiel is an extinct volcano in the Hegau region of Baden-Württemberg in southern Germany. It is west of the city of Singen and 30 kilometres (19 mi) from Lake Constance. It is tall but is hidden.
 Aerial photo of the Hohentwiel | |
| Elevation | 686 m (2,251 ft) |
|---|---|
| Location | |
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| Location | Baden-Württemberg, Germany |
