Ancient Inca terrace fields at Moray, Maras, Sacred Valley, Cuzco Region, Peru, South America

inca moray terrace fields sacred valley peru agriculture ancient landscape history maras cuzcoterraces culture indigenous soil farming engineering archaeological site tourism nature mountains ecosystem agriculture techniques heritage peruvian biodiversity preservation cultivation altitude irrigation geography terraces scenery stone civilization ruins sites cultural environmental trekking exploration scenic traditions patterns circular rural outdoor sustainable agriculture field design