Columbia subject headings:
Harvard subject headings:
Derwentside (England)--Antiquities.
Excavations (Archaeology)--England--Derwentside.
Industrial archaeology--England--Derwentside.
Steel foundries--England--Derwentside--History.
Princeton subject headings:
Derwentside (England)--Antiquities.
Excavations (Archaeology)--England--Derwentside.
Industrial archaeology--England--Derwentside.
Steel foundries--England--Derwentside--History.