Columbia subject headings:
Caernarfon (Wales)--Antiquities, Roman.
Excavations (Archaeology)--Wales--Caernarfon.
Fortification, Roman--Wales--Caernarfon.
Romans--Wales--Caernarfon.
Harvard subject headings:
Caernarfon (Wales)--Antiquities, Roman.
Excavations (Archaeology)--Wales--Caernarfon.
Fortification, Roman--Wales--Caernarfon.
Romans--Wales--Caernarfon.
Segontium Site (Caernarvon, Wales)
Princeton subject headings:
Caernarfon (Wales)--Antiquities.
Excavations (Archaeology)--Wales--Caernarvon.
Romans--Wales--Caernarvon.
Segontium Fort (Caernarvon, Wales)