| UNESCO World Heritage Site | |
|---|---|
 Outer wall of Suoyang City | |
| Location | Guazhou County, Gansu, China |
| Part of | Silk Roads: the Routes Network of Chang'an-Tianshan Corridor |
| Criteria | Cultural: (ii), (iii), (vi) |
| Reference | 1442 |
| Inscription | 2014 (38th Session) |
| Area | 15,788.6 ha (39,014 acres) |
| Coordinates | 40°14′47″N 96°12′19″E / 40.24628°N 96.20514°E |
  Location of Suoyang City in Gansu  Suoyang City (China) | |
Suoyang City (Chinese: 锁阳城; pinyin: Suǒyáng Chéng), also called Kuyu (苦峪), is a ruined Silk Road city in Guazhou County of Gansu Province in northwestern China. First established as Ming'an County in 111 BC by Emperor Wu of Han, the city was relocated and rebuilt at the current site in 295 AD by Emperor Hui of the Western Jin dynasty. As the capital of Jinchang Commandery (later Guazhou Prefecture), the city prospered during the Tang and Western Xia dynasties. It was an important administrative, economic, and cultural center of the Hexi Corridor for over a millennium, with an estimated peak population of 50,000. It was destroyed and abandoned in the 16th century, after the Ming dynasty came under attack by Mansur Khan of Moghulistan.
The city ruins comprise the inner city, the outer city, and several yangmacheng (fortified animal enclosures used as fortresses in wartime). Outside the city walls, the broader archaeological park includes the original site of Ming'an County, more than 2,000 tombs, and the remains of an extensive irrigation system with over 90 kilometres (56 mi) of canals. The archaeological park also encompasses a number of Buddhist sites, including the Ta'er Temple, the Eastern Thousand Buddha Caves, Jianquanzi Caves (碱泉子石窟), and Hanxia Caves (旱峡石窟).[1]
Suoyang City is listed as a Major National Historical and Cultural Site of China (No. 4-50). In 2014, it was inscribed on UNESCO's list of World Heritage Sites as part of Silk Roads: the Routes Network of Chang'an-Tianshan Corridor.