Which city does Yongdeng County in Gansu belong to?

Yongdeng County, Gansu Province is located in the northwest of Lanzhou City and belongs to the central part of Gansu Province. Yongdeng was called Lingju and Zhuanglang in ancient times, with east longitude of 102 36' to 103 45' and north latitude of 36 12' to 37 07'. The county covers a total area of 6,090 square kilometers, bordering Gaolan County and Jingtai County in Gansu Province in the east, Minhe Hui and Tu Autonomous County in Qinghai Province in the west, Honggu District and Xigu District in Lanzhou City in the south and Tianzhu Tibetan Autonomous County in the north. Yongdeng county has a permanent population of 285,549 (the data is calculated in 2020).