the highline national recreation trail is a 54.7-mile trail that runs below the mogollon rim in the tonto national forest in arizona. the trail showcases beautiful vistas of rim canyons, brushy hills, distant mountains, unique rock formations, and wonderful stands of ponderosa pine. the trail was established in 1870 and was used to travel between homesteads and to attend school in pine, arizona. zane grey (who had a cabin in the area) and babe haught used the highline trail while hunting. the portion of the highline trail from the washington park trailhead to the pine trailhead is part of the arizona trail passage 26.