The Iron Gate breaks up the mountains between Samarkand and a province which is 20 kilometers northwest of what provincial capital?
Iron Gate (Central Asia) The Iron Gate is a defile between Balkh and Samarkand. It breaks up the mountains which extend from the Hisar range south towards the Amu Darya. In ancient times it was used as the passage between Bactria and Sogdia and was likely of great importance to any power in the region. Its name comes from the belief that an actual gate, reinforced with Iron, stood in the defile. It is located to west from Boysun, Surxondaryo Province.
Lashkargah Lashkargāh (Pashto: لښکرګاه‎ ; Persian: لشکرگاه‎ ‎ ), historically called Bost or Boost (بست، بوست ), is a city in southern Afghanistan and the capital of Helmand Province. It is located in Lashkargah District, where the Arghandab River merges into the Helmand River. The city has a population of 201,546 as of 2006. Lashkargah is linked by major roads with Kandahar to the east, Zaranj on the border with Iran to the west, and Herat to the north-west. It is mostly very arid and desolate. However, farming does exist around the Helmand and Arghandab rivers. Bost Airport is located on the east bank of the Helmand River, five miles north of the junction of the Helmand and Argahandab rivers.