Black, hardened tailings and waste originating from the Tegas Guna Mandiri coal factory can be found in a canal at the Muarojambi temple complex, one of the world's largest ancient temple complexes in Southeast Asia which is connected to the Batang Hari River.

The manapo, or unexcavated mounds possibly covering the ruins of a temple underneath it, is situated only 5 meters away from where the coals are piled up. Trees and bushes around it whithe