The Coral Dam position “gathers in all around thousand screen-like mountain peakses, above three big river currents” nearby Chongqing urban district, flow together the approximately four kilometers in Jialing River and Yangtze River, place Yangtze River main channel near concave bank one side. The granulated substance dam major axis approaches consistently, long the approximately 1.1 kilometers with the mainstream, the area 0.275 square kilometer. Sand dam forehead slightly obviously delays compared to the rear part. According to the rivers classification should be the upstream rivers the heart beach deposit.
Meaning "double celebrations" in Chinese, Chongqing was built in the 11th century BC during the Zhou Dynasty. Now Chongqing is the biggest city in China in terms of area and population. Also known as "Fog City" in addition to "the Furnace," Chongqing is covered with a thick layer of fog for an average of 68 days a year, usually in spring or autumn. The fog gives the place an air of mystery.