Huanglong is a scenic historic area in the northwestern part of Sichuan province in southwestern China. It is located in the southern part of the Minshan Mountains, 370km northwest of the provincial capital Chengdu. This area is known for its colorful pools formed by calcite deposits as well as diverse forest ecosystems, snow-capped peaks, waterfalls and hot springs. Huanglong is also home to many endangered species such as the giant panda and the golden snub-nosed monkey. As a result of thousands of years of geological evolution, Huanglong consists of numerous unique geological landscapes that have combined to create world-famous limestone landscapes and pools. Indeed, Huanglong’s limestone deposits stretch out across 3.6km and look like a huge golden dragon crawling through the snow-capped valley mountains. The main landscape consists of limestone deposits, colorful ponds, waterfalls and limestone caves. Amazingly, the color of the water is a combination of yellow, green, blue and brown. Starting from an ancient Buddhist temple at the top of the valley and ending at the Guests Welcome Pond in the north, the stream covers a total length of 2.5km across a width ranging from 30 to 170m. In 1992 Huanglong was declared a UNESCO World Heritage Site.