Bayinbrook prairie, Mongolian means "inexhaustible spring" (Turkic means "star plain"). It belongs to Bayingolin Mongol Autonomous Prefecture. It is located in the mountain basin in the middle of Tian Mountain range, surrounded by snow mountains. It is a resting place in the middle section of Duku highway. Because of its vast territory, it is known as "the second largest grassland in China" and its unique natural geographical location, The soil and water of Fengwo gave birth to the unique bayinbrook sheep.