The aqueduct that fed Tlatelolco for hundreds of years originated at a mystical pool called Xancopinca, east of Atzcapozalco on the western shore of Lake Xochimilco. The aqueduct dates at least to the reign of Tezozomoc of Azcapotzalco, from 1370 to 1426.
![Spring of Xancopinca shown in the Tira de Tepechpan.](https://mexicapodcast.com/wp-content/uploads/2023/09/Xancopinco_shown-in-Tira-tepechpan-1024x402.jpg)