Yarkant County, also Shache County, also transliterated from Uyghur as Yakan County, is a county in the Xinjiang Uyghur Autonomous Region, China, located on the southern rim of the Taklamakan Desert in the Tarim Basin. It is one of 11 counties administered under Kashgar Prefecture. The county, usually referred to as Yarkand in English, was the seat of an ancient Buddhist kingdom on the southern branch of the Silk Road and the Yarkand Khanate. The county sits at an altitude of and had a population of .
The fertile oasis is fed by the Yarkand River, which flows north down from the Karakorum mountains and passes through the Kunlun Mountains, known historically as the Congling mountains (lit. 'Onion Mountains' - from the abundance of wild onions found there). The oasis now covers , but was likely far more extensive before a period of desiccation affected the region from the 3rd century CE onwards.
Today, Yarkant is a predominantly Uyghur settlement. The irrigated oasis farmland produces cotton, wheat, corn, fruits (especially pomegranates, pears and apricots) and walnuts. Yak and sheep graze in the highlands. Mineral deposits include petroleum, natural gas, gold, copper, lead, bauxite, granite and coal.
The territory of Yārkand is first mentioned in the Book of Han (1st century BCE) as "Shaju" (Old Chinese, approximately, *s3a(j)-ka), which is probably related to the name of the Iranian Saka tribes.
Descriptions in the Hou Hanshu ('History of the Later Han') contain insights into the complex political situation China faced in attempting to open up the "Silk Routes" to the West in the 1st century CE. According to the "Chapter on the Western Regions" in the Hou Hanshu:
"Going west from the kingdom of Suoju (Yarkand), and passing through the countries of Puli (Tashkurghan) and Wulei (centred on Sarhad in the Wakhan), you arrive among the Da Yuezhi (Kushans). To the east, it is 10,950 li (4,553 km) from Luoyang.
The Chanyu (Khan) of the Xiongnu took advantage of the chaos caused by Wang Mang (9-24 CE) and invaded the Western Regions.