The Ljubija mine is a large open pit mine [1] located in Prijedor, in the western part of Bosnia and Herzegovina in Republika Srpska, 48 km South - East of Banja Luka and 250 km South - East of the capital, Sarajevo.

Ljubija represents the largest iron ore reserves in Bosnia and Herzegovina having estimated reserves of 442 million tonnes of ore.[2] The mine produces around 2,900,000 tonnes of iron ore/year.

[2] Iron ore is mined together with zinc, lead, baryte and fluorite.

[1] Ore mining in this location first began in 6th century BC.

Modern industrial production was established in 1916.