Etymology The word "Ras" means "gateway" and the word "Koh" means "mountain" in
Persian; therefore, it means "Gateway to the Mountains."
Topography and geology The
Ras Koh Hills range is expanded between the districts of
Chagai and
Kharan, and is about in length, according to the survey conducted by the former
British Indian Army in 1910. The length of the Ras Koh Range is also confirmed by the Geological Survey of Pakistan and the
Survey of Pakistan which measured to be exact at . The highest peak in Ras Koh Hills range is measured to be , with average hills are measured at . The famous
Chagai Hills are located on the northwest of Ras Koh but usually contains in its range of study of geology with the Ras Koh Hills. The Ras Koh Range is actually separated by a larger structural depression between the open flood flats of the Chagai Hills and the Ras Koh Hills— they are widely divided by the desert terrain. The
sedimentary rock formations in the range are mostly granite,
limestone and
conglomerate. The GPS also discovered the deposits of the
diorites in Ras Koh Range in its records. In Ras Koh Range, GSP also recorded the few
alluvial fans in its 1970 reports but the area is mostly desert and rocky terrain. The township,
Dalbandin, is the closest town near the site, which is about from the range. Accessibility to the test site is only through the
N-40, which is located on the eastern part of the range. The weather is reportedly very extreme in Ras Koh and is one of Pakistan's extreme places with very hot in summer and
very cold in winter. ==Nuclear testings==