The Incan Empire was centered in the Andes mountain range in western South America.

Core answer

  • The primary mountain range that was part of the Incan Empire is the Andes Mountains, which run north–south along the western edge of the continent.
  • Many major Incan cities, roads, and terraces were built high in the Andes, using the steep terrain for defense, agriculture, and religious sites.

Extra detail

  • The empire stretched along much of the Andean chain, from present‑day Colombia down through Ecuador, Peru, Bolivia, and into parts of Chile and Argentina.
  • Within the Andes, sub‑ranges such as the Cordillera Blanca in Peru also formed part of Incan territory and provided glacial water and stone for construction.

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