The primary mountain range in northeastern China is the Changbai Mountains, also known as the Baekdu Mountains. This volcanic mountain range forms a natural border between China and North Korea. Mount Baekdu, the highest peak in this range, stands at 2,744 meters (9,003 feet) and is significant both historically and culturally. The region is home to diverse ecosystems, rich flora and fauna, and is considered sacred in local folklore. The mountains are also a source of natural resources, including minerals and water.