Thạch An district
Thạch An district 
    Huyện Thạch An  | |
|---|---|
Center of Đông Khê town  | |
| Country | Vietnam | 
| Region | Northeast | 
| Province | Cao Bằng | 
| Capital | Đông Khê | 
| Area | |
 • Total  | 264 sq mi (683 km2) | 
| Population  (2003)  | |
 • Total  | 31,942 | 
| Time zone | UTC+7 (Indochina Time) | 
Thạch An is a rural district of Cao Bằng province in the Northeast region of Vietnam. As of 2003 the district had a population of 31,942. The district covers an area of 683 km². The district capital lies at Đông Khê.