It was included in the UNESCO world heritage list in 1992.
The Huanglong Scenic and Historic Interest Area is located in Songpan County, in the northwest part of Sichuan Province and encompasses the Huanglong and Muni Valley. Huanglong's major scenery is concentrated in the 3.6-kilometer (2.2 miles) long Huanglong Valley that includes snow-clad peaks and the easternmost glaciers in China. Due to its layered calcium carbonated deposit patterns, the valley resembles a golden dragon winding its way through the virgin forest, stone mountains and glaciers. Along the valley are scattering numerous colorful ponds of different sizes and shapes, which are strewn with gold colored limestone deposit giving a shimmering golden hue to water, so in sunlight, a golden dragon seems to surge forth from the forest. Thus it was named 'Huanglong Valley' (Yellow Dragon Valley).
Huanglong Scenic and Historic Interest Area is famed for its outstanding travertine (calcium carbonate) formations. With the virgin forest as its backdrop, the travertine scenery holds colorful ponds, beaches, lakes, springs, waterfalls, caves, etc. The travertine formations scenery is No.1 in China.
