 Qing sources refer to the region primarily as "Nanlu" or the Southern Circuit.Other Qing terms for the region include "Huijiang" (the "Muslim Frontier"), "Huibu" (the "Muslim Tribal Area) and "Bacheng" (the "Eight Cities") or Nanjiang.Altishahr refers to the Tarim Basin of Southern Xinjiang, which was historically, geographically and ethnically distinct from the Dzungarian Basin of Northern Xinjiang.