when was the baikal-amur mainline (bam) railroad completed in the russian domain
Baikal–Amur Mainline The BAM was again declared complete in 1991. By then, the total cost to build the line was US$14 billion.
Wakhan Corridor The Wakhan Corridor (alternatively Vakhan Corridor, or Wakhan) is the narrow strip of territory in northeastern Afghanistan that extends to China and separates Tajikistan from Pakistan. The corridor, wedged between the Pamir Mountains to the north and the Karakoram range to the south, is about 350 km (220 mi) long and 13–65 kilometres (8–40 mi) wide.[1] From this high mountain valley the Panj and Pamir Rivers emerge and form the Amu Darya. A trade route through the valley has been used by travellers going to and from East, South and Central Asia since antiquity.[citation needed] The term "Wakhan Corridor" can also refer to this constituent valley and the historical trade route through it.[citation needed] The closure of the Afghan-Chinese border crossing at the Wakhjir Pass, on the east end of the Wakhan Corridor, has left the valley bereft of trade.[citation needed]