What is Hohentwiel?
{{Infobox mountain | name = Hohentwiel | photo = Hohentwiel-luftbild.jpg | photo_caption = Aerial photo of the Hohentwiel | photo_size = 250 | elevation_m = 686 | elevation_ref = | prominence = | map = Germany Baden-Württemberg | map_caption = The location within Baden-Württemberg | label_position = right | location = [[Baden-Württemberg]], [[Germany]] | range = | coordinates = {{coord|47|45|53|N|8|49|08|E|region:DE-BW}} }} '''Hohentwiel''' is an [[extinct volcano]] in the [[Hegau]] region of [[Baden-Württemberg]] in southern [[Germany]]. It is west of the city of [[Singen (Hohentwiel)|Singen]] and {{convert|30|km}} from [[Lake Constance]]. It is tall but is hidden. [[Category:Geography of Baden-Württemberg]] [[Category:Mountains of Germany]] [[Category:Volcanoes of Europe]] {{europe-stub}}