Brdy is a range of hills in the Czech Republic, forming a long massif stretching for c. 60 km southwest from Prague. The northern section of the Brdy is called "Hřebeny" and features one narrow ridge. The main Brdy range starts south of the Litavka river gorge and consists of several major elevations connected into one plateau, the highest peaks among them being Tok, Praha or Třemšín. Most of the Brdy is covered by forest, and it is one of the largest contiguously forested areas in the interior of the country. Large sections of the massif are designated as a restricted military area and closed to the public. The Brdy military area has been a source of controversy for several decades.