Extent: 820 square kilometres.

This mountain range is located in west part of Slovakia and divide - similarly as fortification - Záhorská plainland from  Danube plainland. The complex belongs to Fatra-Tatra area, which forms a part of West Carpathian Mountains. It is divided into four next parts, such as: Devínské, Pezinské, Brezovské and Čachtické.

Highest peak: Záruby (768 m).

Surface: afforested, including beech-wood and oak forests.

Climatic area: rather warm, in higher localities moderately warm area.

The territory was declared as Preserved Countryside Area in 1976.