Mount Ambang Nature Reserve

Mount Ambang Nature Reserve is a protected montane forest reserve centered on the dormant Gunung Ambang volcano in Bolaang Mongondow Timur Regency, North Sulawesi, Indonesia. Established to conserve Sulawesi's endemic flora and fauna, it covers approximately 8,638 hectares of tropical rainforest and volcanic terrain. The reserve is notable for its rich biodiversity, including endemic birds, tarsiers, and diverse montane ecosystems, and serves as an important watershed and research site.

Visitors can expect dense tropical montane forest surrounding the volcanic cone of Gunung Ambang with crater areas, mossy forest, and watershed streams. The setting is remote and natural with basic trails used for trekking and wildlife observation. There are no developed tourist structures inside the reserve; exploration is on forest paths with a local guide. Bird calls, endemic wildlife sightings, and views of volcanic terrain and surrounding lowlands are the main features of a visit.