"The most famous sight of the Hegau is the Hohentwiel, a volcanic stub. On top of the mountain lies Hohentwiel fortress. The castle that once stood ...
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there was destroyed by French troops during the Napoleonic Wars[citation needed].
The Hohentwiel is the southernmost of a row of volcanic stubs in the Hegau, including the Hohenkrähen, the Hohenstoffeln, and the Hohenhewen." - (en.wikipedia.org 22.09.2020)
- Latitude47.796390533447
- Longitude8.75