The Sulaiman Mountains Range are a north–south extension of the southern Hindu Kush mountain system in western Pakistan and eastern Afghanistan. They rise to form the eastern edge of the Iranian plateau. They extend from the Kandahar, Zabul and Paktia provinces of Afghanistan across the northern Balochistan, Waziristan and Kurram of Khyber Pakhtunkhwa in Pakistan. In southwestern Punjab, the mountains extend into the Dera Ghazi Khan and Rajanpur districts, which are located west of the Indus River on the boundary with Balochistan. Bordering the mountains to the east are the plains of the Indus River valley, and to the north are the arid highlands of the Central Hindu Kush whose heights extend up to 3,383 m (11,099 ft). The total area on which this range spans around 6,475 km (2,500 sq mi). Together with the Kirthar Mountains on the border between Balochistan and Sindh Province, the Sulaiman Mountains form the Sulaiman-Kirthar geologic province.
The most well-known peak of the Sulaimans is the twin-peaked Takht-e-Sulaiman at 3,487 m (11,440 ft), located near Darazinda in Dera Ismail Khan Subdivision, close to the border with both South Waziristan and the Zhob District of neighboring Balochistan. The highest peak is Zarghun Ghar at 3,578 m (11,739 ft) near Quetta. The next highest peak in Balochistan province is Khilafat Hill at 3,475 m (11,401 ft) located in the Ziarat District of Pakistan and is famous for the Ziarat Juniper Forest, where Juniperus macropoda trees grow.