 This area is known for its colorful pools formed by calcite deposits, especially in Huanglonggou (Yellow Dragon Gully), as well as diverse forest ecosystems, snow-capped peaks, waterfalls and hot springs.Huanglong is also home to many endangered species including the giant panda and the Sichuan golden snub-nosed monkey.Huanglong was declared a World Heritage Site by UNESCO in 1992.