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Achanakmar-Amarkantak Biosphere Reserve is named after Achanakmar forest village and Amarkantak, a holy place from where the Narmada, Johilla and Sone rivers emerge. Achanakmar-Amarkantak Biosphere Reserve was declared as Biosphere Reserve (BR) by Government of India vide notification no. 9/16/99 CS/BR dated 30th March 2005. It lies between lat. 220 15’ to 200 58’ N & long. 810 25’N to 820 5’E and is spread from Maikal hill ranges to the junction of Vindhyan and Satpura hill ranges in a triangular shape. Bilaspur and Marwahi forest divisions of the Chhattisgarh state, Dindori and Anuppur forest divisions of Madhya Pradesh state surround the core zone of BR. The total geographical area of BR is 3835.51 sq. km. The core area of the BR is 551.55 sq. km., falls in Chhattisgarh state. It is surrounded by buffer and transition zone area of 3283.96 sq. km., out of which 2058.98 sq. km. falls in Bilaspur and Marwahi forest divisions of Chhattisgarh and 1,224.98 sq. km in Dindori and Anuppur forest divisions of Madhya Pradesh.