The Manas Wildlife Sanctuary is part of the core zone of the 283,700 hectares Manas Tiger Reserve, and lies alongside the shifting river channels of the Manas River. It spans on either side of the majestic Manas river flanked in the east and the west by reserved forests. Criterion (x): The Manas Wildlife Sanctuary provides habitat for 22 of India’s most threatened species of mammals. IntegrityThe property is a wildlife sanctuary with a focus on maintaining the integrity of the property as a natural area. Manas Wildlife Sanctuary is buffered on the north by the Royal Manas National Park of Bhutan and on the east and west less effectively by the Manas Tiger Reserve.