They follow the border with Kłodzko Land in Poland for 40 km (25 mi).

The highest point in the range is Velká Deštná at 1,116 m (3,661 ft).

The mountains are mainly composed of crystalline rocks, consistent with the makeup of the northern rim of the highlands of Bohemia.

The entire region has maintained its original natural character over the centuries and so beech primeval forests, protected landscape areas or nature parks and reserves are interwoven with trails, right next to chateaux and town parks and groomed rural gardens.

The gentle rolling hills are interlaced with hiking trails, a dense network of cycle trails and routes leading along rivers.