How is Gansu divided administratively into prefecture-level municipalities and autonomous prefectures?

Administratively, the province of Gansu is divided into two primary types of sub-provincial units that operate under the direct supervision of the provincial government in Lanzhou:1

• Prefecture-level municipalities (dijishi): There are 12 such municipalities in the province.1
• Autonomous prefectures (zizhizhou): There are two autonomous prefectures, which are designated based on the ethnic groups residing within them:
  • Linxia Hui Autonomous Prefecture: Inhabited by the Hui people.1
  • Gannan Zang Autonomous Prefecture: Inhabited by the Tibetan people.1

These prefecture-level divisions are further subdivided into smaller administrative units, including counties (xian), autonomous counties (zizhixian), and county-level municipalities (xianjishi).1