Charklik / Ruoqiang is the county seat of Charklik / Ruoqiang County. Charklik / Ruoqiang County is the largest county in all of China, with 198,318 sq km. Neighboring Cherchen / Qiemo County (to the west) is the second largest.
Both of these counties are in the Bayangol / Bayingolin Mongol Autonomous Prefecture, which is the largest prefecture in all of China, with 462,700 sq km. Korla is the capital of this prefecture. (Charklik / Ruoqiang - Ancient Kingdom and Outpost Gateway http://www.centralasiatraveler.com/cn/xj/cr/charklik-ruoqiang.html)