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Introduction to the Helan Mountain Primeval Forest: The Helan Mountain Primeval Forest is located on the southern edge of the central Mongolian Plateau, covering an area of 360,000 acres. It is a famous primeval forest area in my country. The area has obvious vertical landscape, complex and diverse flora and fauna areas and a complete mountain ecosystem. The diverse and rare flora and fauna make Helan Mountain the origin of many type specimens.