Columbia subject headings:
Alps--Civilization.
Christian pilgrims and pilgrimages--Alps--History.
Church buildings--Alps.
Church history--Middle Ages, 600-1500.
Europe--Church history--600-1500.
Mountain passes--Alps.
Harvard subject headings:
Alps--Civilization.
Christian pilgrims and pilgrimages--Alps--History.
Church buildings--Alps.
Church history--Middle Ages, 600-1500
Europe--Church history--600-1500.
Mountain passes--Alps.
Princeton subject headings:
Alps--Civilization.
Christian pilgrims and pilgrimages--Alps--History.
Church buildings--Alps.
Church history--Middle Ages, 600-1500.
Europe--Church history--600-1500.
Mountain passes--Alps.