Memphis is a city in the U.S. state of Tennessee. It is the seat of Shelby County in the southwest part of the state; it is situated along the Mississippi River. With a population of 633,104 at the 2020 U.S. census, Memphis is the second-most populous city in Tennessee, after Nashville.
Memphis is the fifth-most populous city in the Southeast, the nation's 28th-largest overall, as well as the largest city bordering the Mississippi River. The Memphis metropolitan area includes West Tennessee and the greater Mid-South region, which includes portions of neighboring Arkansas, Mississippi and the Missouri Bootheel. One of the more historic and culturally significant cities of the Southern United States, Memphis has a wide variety of landscapes and distinct neighborhoods.
Maqu County, which belongs to Gannan Tibetan Autonomous Prefecture of Gansu Province, is located in the southwest of Gannan Tibetan Autonomous Prefecture of Gansu Province, the eastern end of the Qinghai-Tibet Plateau, the junction of Gansu, Qinghai and Sichuan provinces, and the first curved part of the Yellow River. It is located between longitude 100 °4545 "~ 102 °2900" east and latitude 33 °0630" ~ 34 °3015 "north, bordering Luqu County of Benzhou by Xidianshan in the northeast and Ruoergai County and Aba County of Aba Tibetan and Qiang Autonomous Prefecture in Sichuan Province in the southeast. Maqu County has a total area of 10190 square kilometers and a total population of 54900 (2011), of which Tibetans account for 2/3, with an average elevation of 3700 meters. Maqu belongs to the Qiang nationality in ancient times. After Tubo unified the Qinghai-Tibet Plateau in 663 AD, it became a nomadic place for Tibetans. In 2011, Maqu