In ancient times, the main (*) river of this geographic feature was called the Jaxartes, along which the city of Alexandria-Eschate [ess-khah-tay] , now Khujand, was founded.
The presence of six different exclaves within a part of this geographic feature called the Batken Region makes land travel challenging; in one of these exclaves, the town of Shakhimardan contains a purported tomb of Ali. The plains in this natural feature are abruptly elevated at a place called Takht- e-Suleiman, or Solomon's Mountain, which is sometimes associated with a "Stone Tower" identified by Ptolemy and is found near the city of Osh. In ancient times, the main (*) river of this geographic feature was called the Jaxartes, along which the city of Alexandria-Eschate [ess-khah-tay] , now Khujand, was founded. Part of this region comprises one nation's Sughd, or Sogdia province. Mughal founder Babur was born in a city in this region called Andijan. For 10 points, name this Central Asian valley along the Syr Darya river.
The presence of six different exclaves within a part of this geographic feature called the Batken Region makes land travel challenging; in one of these exclaves, the town of Shakhimardan contains a purported tomb of Ali.
Fergana Valley [accept West Turkestan; prompt on Greater Khorasan]