The Jian River (Different sources refer to this river as different names. For Jian Jiang (湔江 ), see e.g., ; for Jian He (涧河), see, e.g., ) is a river in China, the headwater stream of Tongkou River (通口河). The Tongkou joins the Fu River which is a tributary of the Yangtze. The Jian River flows through Beichuan Qiang Autonomous County, Sichuan. The 2008 Sichuan earthquake caused a landslide dam on the river which created Tangjiashan Lake. More than 100,000 people were evacuated downstream while a sluice was constructed. The river went to a blood red or crimson color due to pollution.
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