Columbia subject headings:
Harvard subject headings:
Excavations (Archaeology)--England--Housesteads.
Fortification, Roman--England--Housesteads.
Housesteads Site (England)--Antiquities.
Romans--England--Housesteads.
Princeton subject headings:
England--Antiquities, Roman.
Excavations (Archaeology)--England.
Hadrian's Wall (England)
Housesteads Site (England)
Romans--England.