Which desert in Mongolia and China is Asia's largest cold winter desert?

The desert in Mongolia and China known as Asia's largest cold winter desert is the Gobi Desert.

The Gobi stretches across southern Mongolia and northern China, including China's Inner Mongolia region. It covers approximately 1.295 million square kilometres and is commonly described as the world's sixth-largest desert. Its great size comes from a broad desert and semidesert region rather than from one continuous field of sand.

“Cold winter desert” refers to its climate. Much of the Gobi lies on a high plateau, and winter temperatures can plunge dramatically; some areas have recorded temperatures near −40°C. Summer can be hot, creating striking seasonal extremes. Unlike popular images of deserts, large parts of the Gobi consist of exposed rock, gravel, and hard desert pavement.

The name comes from the Mongolian word gobi, meaning dryland. A frequent mistake is to choose the Taklamakan Desert, another major desert of China. The Taklamakan is especially associated with sandy basins in Xinjiang, while the Gobi is the larger Mongolia–North China region described here.