Blackwater is one of the largest open cut coal mines in Australia located in Queensland's Bowen Basin. The mine s reserves lie within 10 mining leases and covers approximately 21 000 hectares. Mining has occurred in 13 separate pits stretching 35 kilometres north to south. The mine produces metallurgical and thermal coal for the export market. Blackwater is owned and operated by BHP Billiton Mitsubishi Alliance.