>>1537912Summer is usually the busiest season, but there are still a bunch of places where there are few to no people.
>Kaibab plateau Contains large forested section that gets closed every winter due to snow and remoteness, less hiking trails than the south rim but gets less than 1/10th the visitors.
>San Francisco MountainsCan still find lots of secluded trails even in summer, probably will see more people than the other areas I'm mentioning though. Abineau trail is one worth mentioning.
>Mogollon Plateau and Mogollon RimLots of secluded forest roads and small lakes and streams. The lakes and trails that can't be accessed by car are the most secluded, do some research and you'll find the ones I'm talking about. Avoid the areas closest to seasonal getaway towns, for example there is one town on the Rim whose population balloons up 500% in summer due to summer cabins and summer houses, then they all leave by fall/winter.
>White MountainsMost secluded of the areas I'm mentioning. Literally the best trout fishing in the state, the upper Black has self sustaining populations of Brown and Apache trout and is stocked with plenty of Rainbows in summer. Alpine, Greer, and Hannagan Meadows are some areas with lightly traveled trails and fishing nearby. (there are restrictions on Apache trout fishing in certain upper sections of the Black, AZGFD 2019-2020 guide tells you where).
Some extra areas are Mt Graham, Sierra Ancha, northern and central Mazatzals, Chiricahua mountains in SE AZ, and the Lukachukai mountains in NE AZ.
Make sure your camp fires are set up properly and fully and completely snuffed out before leaving if you have them while camping/hiking.