The Mogollon Rim is an Arizona Plateau that rises several thousand feet above the lower mountains surrounding the Sonoran desert. It is north of Phoenix about half way to Flagstaff. As an example, North Scottsdale is about 2000', maybe 1200' above Phoenix. The highest area nearby is about 5000'. The Rim rises to 7000' above that. The rim road is a forest service road that hugs the edge of the rim. This is the start of it some 2 hours away from my garage.