Ollantaytambo, Peru (IMAGE)

Geological Society of America

Ollantaytambo, Peru

Caption

The Incas took advantage of pre-existing fractures in local stones to reduce the amount of energy needed to create their master stonework. Photo taken 21 July 2016.

Credit

Terri Cook and Lon Abbott

Usage Restrictions

Credit: Terri Cook and Lon Abbott.

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