The Hezuo City Xinruifeng Cattle and Sheep Breeding Cooperative provides supplementary feeding for their yaks. [Photo provided to gogansu.com]

The land in Gannan in May is brimming with greenery. Driving along National Highway 316 from Hezuo city, under the blue sky and white clouds, herds of yaks leisurely graze on the lush green grasslands.

Gannan Tibetan autonomous prefecture, located at the junction of Qinghai, Sichuan, and Gansu provinces, boasts vast and fertile grasslands, a climate conducive to rearing yak, and a natural environment perfect for their proliferation. For a long time, these "elves of the plateau" have thrived in Gannan.

Gannan yaks drink pristine, pure glacier water and feed on green, pollution-free wild grass. The region's unique ecological environment and distinctive rare species genes have endowed yak milk with unparalleled natural quality.