Ta Xua, also known as Son La Cloud Sea, is a mountain range located in the Bac Yen District of Son La Province, Vietnam. It is one of the highest mountain ranges in Vietnam, with the highest peak reaching an elevation of 2,865 meters (9,400 feet) above sea level. Ta Xua is known for its stunning scenery, including its sea of clouds, its terraced rice fields, and its ancient Shan Tuyet tea trees.