The Five-Colored Ponds are renowned natural wonders in China, primarily located in the Huanglong Scenic Area and Jiuzhaigou Scenic Area in Aba Tibetan and Qiang Autonomous Prefecture, Sichuan Province. The following is a detailed introduction:
I. Geographic Location and Altitude
Huanglong Five-Colored Ponds
Located at the highest point of the Huanglong Scenic Area in Songpan County, at an altitude of 3,576 meters, they are the world's highest open-air travertine pools, comprising 693 pools of varying sizes. Rich in calcium carbonate and bicarbonate ions, they are known as the "Eyes of the Yellow Dragon."12
Jiuzhaigou Five-Colored Ponds
Located in the Zechawa Valley of Jiuzhaigou, at an altitude of 3,010 meters, they are the smallest lake in Jiuzhaigou and are known as the "Eyes of Jiuzhaigou" for their vibrant colors.
II. Scenic Features
Color Causes: The water in these pools exhibits a vibrant blend of blue, green, yellow, and red due to minerals, algae, and light refraction. The Huanglong Five-Colored Ponds are particularly rich in travertine deposits, while the Jiuzhaigou Five-Colored Ponds are even more translucent due to aquatic plants and reflections of the snow-capped mountains.15
Changing Seasons: Jiuzhaigou's Five-Colored Pool displays different hues with the seasons, emerald green and azure blue in spring and summer, and golden and silvery white in autumn and winter. When the Huanglong Five-Colored Pool is still ice-free in winter, it stands out against the snow-capped mountains, creating a tranquil and mysterious scene.