The Dayuan people believe that the Almighty, who gives rain, wing, and life, resides on Mount Mutis. Amongst local groups living in the area near Mt Mutis there is some concern that the development of local resources by mining and timber companies is doing environmental damage in the region. The area around Mt Mutis is an Indonesian national park of approximately 12,000 ha in size. Environmental management is a major concern for the managers of the park.