Balkan Mountains
The central Balkan Mountains reach their greatest height at Yumrukchal, a broad summit rising 2,376 metres above the valleys. Steep cliffs and deep ravines cut into its southern slopes, where beech and fir forests give way to meadows above the tree line. Water falling from the high ridges feeds streams on both sides of the range, while the rocky heights stand between the plains to the north and the valleys of Thrace.