One of the most impressive hydraulic works of pre-Columbian America is located 20 km from Cajamarca, in the archaeological site of Cumbemayo, Peru. In Quechua, "yaku" means water, and the name of this place refers to the aqueduct built here over 2,000 years ago. This thousand-year-old construction, in the shape of a zigzag, extends for 9 km and is carved into the rock. Some sections of the aqueduct measure between 35 and 50 cm wide, with a depth that varies from 30 to 65 cm and an approximate length of 850 meters. In addition, right angles were used, probably to reduce the speed of the water and prevent erosion of the land.
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