The Arizona Daily Sun posted this story today:
Four rescues in 2 days - - Coconimo County, AZ In three of the four cases, the rescuee was in trouble due to injury ( 2 falls, one medical emergency (details unstated)). In the fourth case, the rescuee lost the trail.
In two of the four cases, it wasn't clear how the rescuers were alerted - in the other two, it seems it was by cell phone.