Yanshan Mountain is a mountain range located in northern China, stretching approximately 1,000 kilometers. It serves as a natural barrier between the North China Plain and the Inner Mongolia Plateau. The range is known for its diverse landscapes, including steep peaks, lush forests, and various wildlife species. The highest peak in the Yanshan Mountain range is Mongolia's Mount Yan, which reaches an elevation of about 2,288 meters. The mountains are rich in minerals and have historical significance, as they have been a vital area for trade and cultural exchange throughout Chinese history.