Is the second phase of Yinjiangfu Gold Seal on Hongyan Tunnel?

No. According to Baidu map, Yinjiang Jinyin is located at No.259 Shiyang Road, Chen Jiaping, Jiulongpo District, Chongqing. It is located on a diamond plot on the west side of Hongyan Village, near the red soil area, not above the Hongyan Village Tunnel. Tunnels generally refer to hydraulic tunnels, which are water tunnels dug in the mountains or underground. Hydraulic tunnels can be used for irrigation, power generation, water supply, drainage, water conveyance, construction diversion and navigation.