Location of Cangxi County (pink) in the prefecture-level city of Guangyuan (yellow).
Cangxi ( Chinese 苍溪县 , Pinyin Cāngxī Xiàn ) is a district of the prefecture-level city of Guangyuan in the Chinese province of Sichuan . It has an area of 2,330 km² square kilometers and has 770,000 inhabitants.