Starting from Jianmeng Pass, running eastward to Langzhong, southward to the Zitong, the area was covered by exuberant trees like a green passage and it was pleasantly called the Cuiyun (green clouds) Corridor, as the old saying goes “ Millions of trees covers the route of 3 hundred li”. It starts from the Qiqu Mountain, which epitomizes all its essence. The 20,000 ancient pines forest covering more than 20 hectares in the mountain is reputed as the “Spectacle on the Shu Road” and is considered to be a national treasure. More than 8,000 Trees stand along the corridor and each is marked in serial number by the state government. The “Zhangfei Pine”, “Yazi Pine” both of which were planted in Han and Jin Dynasty respectively are among the oldest trees in the mountain. The “Jinbo Chuanyun” (Jin Pine piercing into the sky) is a key sightseeing spot in the Great Temple. There are also “Song Pine”, “Emperor Pine”, “Taishan Pine”, “Feilong Pine”, “Goddess Pine”, etc.      The “Jin Pine” with the title as “King of Trees” with it thick trunk and curving branches is regarded to be a spectacle in Cuiyun Corridor. It is also worth mentioning that the main peak in the corridor with forest flourishing all year round is a perfect place to do eco-tour thanks to its serener and nice environment.