Middlemount Mine is an open-cut mine located approximately 90 kilometres north-east of Emerald and some 7 kilometres west of the township of Middlemount in Queensland's Bowen Basin.


The mine produces semi-hard coking coal and medium-volatile pulverized coal injection (PCI) coal for the export market. Middlemount has contracted rail and port capacity through Dalrymple Bay Coal Terminal (DBCT) and Abbot Point Port (APCT). 

Full scale operations at the open-cut mine commenced in November 2011. Saleable production amounts to approximately 4.1Million tonnes per annum from some 5.4 Million tonnes per annum of run of mine (ROM) output. Mine life is more than 20 years at current production rates.

Three primary seams of the Rangal coal measures are targeted for mining. The Middlemount and Pisces seams both have an average thickness of between 4.5m and 5m with the Tralee seam slated for extraction when it exceeds 0.3m in thickness.

Mining operations consist primarily of excavator and truck and excavator mining augmented by cast and doze. Beneficiation is performed in a 700tph single stage two product coal handling and preparation plant.

Marketing of the coal is conducted by Peabody and Yancoal on Middlemount's behalf.