Welcome to the Arizona Iota Iota Chapter of the Alpha Tau Omega Fraternity. We are glad that you have found our homepage. Our chapter is located at Northern Arizona University in Flagstaff, Arizona. We were founded in 1990 here at NAU and continually strive to be the best fraternity on this campus. We encourage you to look around the site and find out a little bit more about ATO and Arizona Iota Iota.
