The beautiful scenery around the Subei Mongolian autonomous county, Gansu province, is captured in early autumn. [Photo provided to gogansu.com]

At the beginning of autumn, the Yanchiwan Wetlands in Subei Mongolian autonomous county, Northwest China's Gansu province, embrace a serene beauty.

With mountains and rivers entwined, meadows scattered, and the symphony of geese and herons, it paints a picturesque ecological masterpiece.