Jiuzhaigou Valley is located in Nanping County, 450 kilometers (about 280 miles) to the north of Chengdu City. Its name is due to the existence of nine stockaded villages of Tibetan origin, and it is always regarded as a holy mountain and watercourse by the Tibetan people.
Jiuzhaigou Valley is a great masterpiece of nature having dreamlike scenery and abundant natural resources. It combines blue lakes, waterfalls, verdant forests, snow-covered mountains, and the folk customs of the Tibetan and Qiang peoples.
This region covers more than 600 square kilometers (about 230 square miles), and includes areas such as Shuzheng Valley, Rize Valley, Zechawa Valley and Zharu Valley, etc. The main beauty spots such as calc-sinter lake groups, waterfalls, and other waterscapes, as well as 12 summits make Jiuzhaigou Valley a wonderful appearance.
Legend has it; that long, long ago the deity of mountain named Dago had a crush on the goddess Semo, and he gave a mirror that was made from wind and cloud to the goddess. However, the devil appeared and made trouble to Semo. Inadvertently, Semo broke the mirror into 108 pieces, which fell down to the earth and then turned to 108 colorful lakes. The lake is also called Haizi by local people." - in: http://www.travelchinaguide.com/attraction/sichuan/jiuzhaigou/page1.htm