Columbia subject headings:
Cantabria (Spain)--Antiquities.
Caves--Spain--Cantabria.
Geology, Stratigraphic--Quaternary.
Paleolithic period--Spain--Cantabria.
Harvard subject headings:
Excavations (Archaeology)--Spain--Asturias.
Riera Cave (Spain)
Spain--Antiquities.
Stone age--Spain--Asturias.
Princeton subject headings:
Cantabria (Spain)--Antiquities.
Caves--Spain--Cantabria.
Economics, Prehistoric.
Geology, Stratigraphic--Quaternary.
Geology--Spain--Cantabria.
Paleolithic period--Spain--Cantabria.
Spain--Antiquities.