I have not researched the Apache Trail but I know from our drive through part of it, they were brave! AZ Hwy 88 runs from Roosevelt Lake to Apache Junction through a steep canyon in the Superstition Mountains. The sign telling us part of it was not paved didn't appear until we were already a few miles into it and really too narrow to turn the truck around. Many miles were unpaved and some was single lane but all was hairpin turns! It was quite an adventure! We hit pavement again just before Tortilla Flat which had the first signs of civilization, a quaint saloon. From there it was an easy drive to Apache Junction.