To the west, mountains of Toba Karrar and Chagai separate Balochistan from the neighbouring Afghanistan. Due to absence of any meaningful rains, the north western part of the plateau is generally sandy and lifeless. However, sterams of water gush into the area if it rains. Devoid of any major river, Zhob River which has its headway in the Suleman mountains, falls into Gomal River. Hamman Mashkhel Lake is a salt water lake in the area. Coal, natural gas, chromites, iron and copper are some of the minerals that abound the Balochistan Plateau.