Columbia subject headings:
Archaeology--Northern Ireland.
Monuments--Northern Ireland.
Northern Ireland--Antiquities.
Harvard subject headings:
Excavations (Archaeology)--Northern Ireland.
Historic buildings--Northern Ireland.
Historic sites--Northern Ireland.
Landscape archaeology--Northern Ireland.
Monuments--Northern Ireland.
Northern Ireland--Antiquities.
Northern Ireland--Historical geography.
Princeton subject headings:
Archaeology--Northern Ireland.
Historic buildings--Northern Ireland.
Historic sites--Northern Ireland.
Landscape changes--Northern Ireland.
Monuments--Northern Ireland.
Northern Ireland--Antiquities.
Northern Ireland--Historical geography.