Morning IowaJack...
Saw horses in two locations this morning:
About 18-20 or so right hand side of North Bush Hwy just a mile off the exit from the Beeline heading towards Saguaro Lake, base of a hill today...just watch where the cars are pulled off...maybe 3-4 other photogs and a few folks watching them this morning.
Coming back saw another 8-10 heading out to McDowell mountain park wandering down a wash on the right side of the road, maybe two miles outside of Fountain Hills. Didn't slow so am unsure if these are reservation horses wandering, they often come into the edge of town around the middle school and the MCSO staff have to move them off or can be seen from the bridge on the Beeline Hwy past the casino in the river itself.
Hope this helps!