Rex, welcome also to Long Range Hunting.
Just a guess but Flagstaff is in the northern part of the state. And.......if he was a fly fisher from Flagstaff.....hmmmmmm.;)
My wife and I spent some time around Flagstaff touring on a bike. Saw some pretty country, in and north of, Flagstaff. Sure was hot though when we went through there. Up early and hit the road right after daylight was how we tried to beat the heat.