Koolyanobbing is located 54 km (34 mi) north-northeast of the town of Southern Cross, Western Australia. A subsidiary of Cleveland-Cliffs of Cleveland, Ohio mines Iron ore here. The ore is railed to the port at Esperance for export. Current operations commenced in 1993. The current owner and operator of the lease is Mineral Resources who took over from Cleveland-Cliffs in July 2018. MRL currently mine the ore and transport it to the port of Esperance