Columbia subject headings:
Andes Region--Aerial photographs.
Andes Region--Geography.
Andes Region--Pictorial works.
Harvard subject headings:
Andes Region--Aerial views.
Andes Region--Description and travel.
Andes Region--Maps, Pictorial.
Physical geography--Andes Region--Aerial views.
Pictorial maps
Remote-sensing images.
Princeton subject headings: