Like almost all Hegau mountains, the Hohenhewen has a volcanic origin.
Its bedrock consists of basalt.
A 39-hectare area on the Hohenhewen has been designated a nature reserve since 1982 and its steep eastern mountainside is of particular botanical interest.
Like almost all Hegau mountains, the Hohenhewen has a volcanic origin. Its bedrock consists of basalt. A 39-hectare area on the Hohenhewen has been designated a nature reserve since 1982 and its steep eastern mountainside is of particular botanical interest.
Hohenhewen