Found by Tim Dayton. He and I were specifically looking for one of these amazing lizards along a dirt road but were having no luck. Then he saw a Desert Iguana run off the road and we stopped to look at it. By the time we got out to see it, the iguana had disappeared, but our walk back to the cars spooked this horned lizard and we were able to catch him. I finally got to see this species after 4 different attempts at trying to find one. It was a great way to finish my time in Arizona.