Potohar Plateau is bounded on the east by the Jhelum River, on the west by the Indus River, on the north by the Kala Chitta Range and the Margalla Hills, and on the south by the Salt Range. The Kala Chitta Range thrusts eastward across the plateau towards Rawalpindi; the valleys of the Haro and Soan rivers cross the plateau from the eastern foothills to the Indus. The ramparts of the Salt Range stretching from east to west in the south separate Potohar from the Punjab Plain. The Potwar Plateau includes parts of the current four districts of Jhelum (partially), Chakwal and Rawalpindi. The terrain is undulating. The Kala Chitta Range rises to an average height of 450-900 metres and extends for about 72 kilometres. The Swaan River starts from nearby Murree and ends near Kalabagh in the Indus river. Sakesar (Khushab District) is the highest mountain of this region and Tilla Jogian in Jhelum District is second highest.