Aba Introduction: Aba County is located at the intersection of Sichuan, Gansu, Qinghai and the three provinces in the northwestern part of the autonomous prefecture. It is between 101°18′—102°35′ east longitude and 32°18′—33°37′ north latitude. It is adjacent to Zoige County and Hongyuan County in the east; it is adjacent to Maerkang County in the south; it is bordered by Maqu County in Gansu Province, Jiuzhi County in Qinghai Province, Baoma County and Lintang County in Sichuan Province.