View of the 500-year-old oak grove near castle Wildenstein in the Swiss Jura.
The Swiss Jura is the mountain range lying northwest of the Swiss Alps. It consists of a series of parallel folds in the strata, forming together a plateau about 300 km long and 30 to 60 km wide. These folded ridges have in many places suffered transverse fractures, which, in the form of steep gorges, add greatly to the picturesque character of the landscape. The general height of the range is from 900 to 1500 m.