Prehistoric Hohokam Irrigation Canals, Phoenix Metro

What youโ€™re looking at, right here, is an ancient irrigation canal just north of downtown Tempe, Arizona. Thatโ€™s right! And, itโ€™s far from the only one in the Salt River Valley. It is believed that the Hohokam entered the region sometime around 300 B.C. They went on to build an extensive network of over five-hundred …