Columbia subject headings:
Dwellings, Prehistoric--Ireland.
Fortification, Prehistoric--Ireland.
Iron age--Ireland.
Land settlement patterns, Prehistoric--Ireland.
Harvard subject headings:
Dwellings--Ireland
Ireland--Antiquities.
Land settlement patterns--Ireland.
Ringforts--Ireland.
Princeton subject headings:
Dwellings--Ireland.
Ireland--Antiquities.
Land settlement patterns--Ireland.
Ringforts--Ireland.