Columbia subject headings:
Harvard subject headings:
Andes Region--Antiquities.
Andes Region--Description and travel.
Inca roads--Andes Region--History.
Incas--Antiquities
Indians of South America--Peru
Indians of South America--Qhapaq Ñan.
Peru--Description and travel
Qhapaq Ñan.
Princeton subject headings:
Indians of South America--Peru.
Qhapaq Ñan.