Beichuan Qiang Autonomous County (simplified Chinese: 北川羌族自治县; traditional Chinese: 北川羌族自治縣; pinyin: Běichuān Qiāngzú Zìzhì Xiàn; Qiang: Juda Rrmea nyujugvexueaji xae) is a county under the jurisdiction of Mianyang City in northern Sichuan province, China.

[3] Beichuan was the first county in Sichuan to make the claim as the birthplace of Yu the Great, founder of the Xia dynasty and traditionally regarded as the first hereditary sovereign in Chinese history.

[7] The county town, which prior to the earthquake had a population of 20,000, is to be made into a memorial park, as the site has been deemed too vulnerable.

[8] The earthquake also caused a landslide on Mount Tangjia which dammed the Jian River and created the Tangjiashan Quake Lake.

The lake was once in danger of causing the Tangjiashan Dam to collapse and catastrophically flood downstream communities, totalling over a million persons.

[9] Since the earthquake, the central government has increased fortification intensity for seismic design for the old county town from VI to VIII.