Mountain and associated mountain range in Vietnam
Phong Ien
Yên Tử is a mountain range in Vietnam spanning the cities of Quảng Ninh, Bắc Ninh and Hải Phòng.
It is also the name of the highest mountain in the range, with its summit at an elevation of 1068 m.
Text adapted from Wikipedia, CC BY-SA 4.0. Photograph: Wikimedia Commons (see Commons), Wikimedia Commons.