The Qilian Mountains in northwest China's Qinghai Province were illuminated by a spectacular display of light and shadow on Tuesday, revealing a rare natural phenomenon known as the Tyndall effect.
Following a rainstorm in Qilian County, the clouds gradually dissipated, allowing sunlight to pierce through the layers, casting a distinct and captivating play of light on the earth. This added an extra touch of mystery and allure to the already majestic Qilian Mountains.
The Tyndall effect, a physical phenomenon, occurs when light passes through a colloid, creating a clearly visible light path. With the dark clouds gradually dissipating, a rainbow quietly appeared in the sky, adding a magical touch to this visual feast.
Situated as a northern outlier of the Kunlun Mountains, the Qilian Mountains serve as the border between Gansu and Qinghai provinces.
Stretching approximately 800 km from the south of Dunhuang to the southeast, this mountain range forms the northeastern escarpment of the Qinghai-Tibet Plateau and the southwestern border of the Gansu Corridor.
With an average altitude of 4,000 to 5,000 meters above sea level, the Qilian Mountains were designated as a national nature reserve in 1988.
Known as the "Mother Mountains" by the people of Gansu, the Qilian Mountains continue to captivate people with their natural wonders and breathtaking landscapes.
Rare natural phenomenon Tyndall effect shines in Qilian Mountains
