The iron mine is used to produce iron, may only be placed in Lowlands, Highlands and Mountain Peak village types, and must be placed on iron deposits in the village. The Mountain Peak and Highlands village types will yield the greatest iron production. Before this building may be placed, players must research Iron Mining in the Industry tab of the research tree. The production rate of this building may be increased by further researching Iron Mining, and by upgrading the Miners' Guild in the parish capital. Strategy cards may also give a production bonus.