The Grianán of Aileach is a National Monument in State ownership. Located at the summit of Greenan Mountain, it is a hillfort with a stone cashel within the ramparts, with a number of related archaeological features. The lands in state ownership extend to just under 12 hectares. However, some archaeological features lie outside this area, and the wider landscape setting of the Monument is central to its meaning, presentation and significance.
This Conservation Management Plan for the Grianán of Aileach was commissioned by the Office of Public Works in order to ensure its long-term protection through agreement and consensus, by management, and here appropriate, enhancement and interpretation.