Humphreys Peak Trail Professional Review and Guide
"This popular hike takes you to the highest summit in Arizona, which is in the Kachina Peaks Wilderness. On a clear day the views are, well, incredible. Note that cross-country hiking is prohibited by the USDA Forest Service above 11,400 feet on San Francisco Mountain. Above timberline, you must stay on the trail. This trail was built in 1985 and is not shown on the topographic map. The trail starts near the base of a chair lift in upper Hart Prairie and crosses into the forest on the north side of the meadow. The trail ascends in a series of long but well-graded switchbacks through the dense forest.
At first, the forest is a mixture of ponderosa pine, Douglas-fir, and quaking aspen trees associated with the Canadian life zone. These give way to limber pine and Englemann spruce in the higher sections of the forest. Near timberline, the forest is mostly subalpine fir, Arizona corkbark fir, and bristlecone pine, which represents the classic subalpine life zone."