The counties of Ulster (modern boundaries) that were colonised during the plantations. This map is a simplified one, as the amount of land actually colonised did not cover the entire shaded area.

The Plantation of Ulster was the organised colonisation (plantation) of Ulster. Ulster is a province of Ireland. People from Scotland and England were sent by the English government to live there. This started at the beginning of the 17th century, from 1606. It was colonised to stop the people living in the area fighting against the English rule. Ulster had been the region most resistant to English control during the previous century.