Mount Heng in Hunyuan, Shanxi

"Mount Heng", also known as "Northern Mount Heng", is located about 10 kilometers south of Hunyuan County in Shanxi Province, with its main peak, Tianfeng Ridge, standing at 2017 meters above sea level. The Heng Mountain Range is a series of peaks between the Sanggan River and the Hutuo River, in the southeastern part of Datong City in Shanxi Province and the southern part of Zhangjiakou City in Hebei Province. It extends roughly from southwest to northeast, with a length of about 300 kilometers from east to west and a width of about 80 kilometers from north to south. The highest peak is Mantou Mountain, located on the border of Shanyin County and Ying County, with an elevation of 2426 meters.