Buxa Tiger Reserve (Bangla: বক্সা জাতীয় উদ্যান) is a tiger reserve in northern West Bengal, India, covering an area of 760km2. In altitude, it ranges from 60m in the Gangetic Plains to 1750m bordering the Himalayas in the north. At least 284 bird species inhabit the reserve. Mammals present include Asian elephant, gaur, Sambar deer, clouded leopard, Indian leopard, and Bengal tiger. Local people living in 37 villages inside the reserve depend on collection of non-timber forest products. It is contiguous to the Buxa Formation of Mamley in Mamley village of Namchi neighboring state of Sikkim, the stromatolite bearing Dolomite Limestones, which has been declared national geological monument by the Geological Survey of India (GSI), for their protection, maintenance, promotion and enhancement of geotourism.