Introduction to Jiaochenggou: Jiaochenggou is located on the east bank of the Mianxi River Grand Canyon, and is called Lianghe River by the local people. It originates from Baomin Village, Guhe Town, and is more than 3 kilometers long. The valley is named after the national second-class protected plant Callia philadelphia, which is known as a "living fossil".
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