The Aqua Alsietina between Lake Martignano and Rome
The Aqua Alsietina, according to Nibby passed from Lago di Martignano, beneath Monte Maiale, where two pozzi were visible
to Pamela Hemphill in recent years, along the Fosso di Formello,
south to Santa Maria in Galera, the ancient Roman Station of
Caeraie, and arrived in central Rome opposite the Convent of San Cosimato, where it was used to fill Augustus' Naumachia - his lake for staging faux shipping battles.