“Half Spine Mountain” is one of the the highest peak in Sichun. It is located within Jiuzhaigou Valley Scenic. It has 4 peaks and standing at 6250 meters. The first ascent was in 2004 by Asian team and there was only a few groups succeed on reaching the peak. The weather on September is rarely stable. Heavy raining and snowing usually happens on the peak. The climbing trip is tough and is suitable for professional climbers only.