Uploaded November 2014 | Updated September 2026, 2 hours ago
On October 21, 2014, Dr. Jerry Howard (Arizona Museum of Natural History) explained how he became the leading expert on irrigation canals built and maintained by the Hohokam people of ancient Arizona.
On October 21, 2014, Dr. Jerry Howard (Arizona Museum of Natural History) explained how he became the leading expert on irrigation canals built and maintained by the Hohokam people of ancient Arizona.



