The Ras Koh Hills is a range of granite hills forming part of the Sulaiman Mountain Range in the Chagai District in Pakistan's Balochistan province. The word "Ras" means "gateway" and the word "Koh" means "mountain" in Urdu. Ras Koh, therefore, means "Gateway to the Mountains." Pakistan's first nuclear tests were carried out in the Ras Koh Hills
Location
The Ras Koh Hills are situated in the Chagai District of Pakistan's Balochistan province and lie to the south of the
Chagai Hills and between the higher
Sulaiman Mountains to the northeast and the lower
Kirthar Mountains to the southwest.
Climate
The Ras Koh Hills lie in an arid zone, which is outside the
monsoon belt. The Ras Koh Hills receive scanty and irregular rainfall (an average of 4 inches annually). The temperature is extreme: very hot in summer and very cold in winter. The average minimum temperature is 2.4°C (36.3°F) in January and the average maximum temperature is 42.5°C (108.5°F) in July.