Humphreys Trail No. 151


Humphreys Trail Trailhead Photo

This steep mountain trail leads to the highest point in Arizona. If you consider it merely as a means to that end, however, you'll miss much of the reason to come here. The trails runs approximately 5 to 5.5 miles in length one way, so make sure you start early in the day if you are planning a roundtrip day hike.  Along its course, a thriving alpine forest streaked with huge rock slides and avalanche tracks hugs the mountain's slopes. Scenic Hart Prairie stretches out the base of the incline and the Grand Canyon is easily visible on the horizon.

As the elevation increases, trailside vegetation shows more and more evidence of the extreme harshness of this environment. Near tree line what's left of the forest consists entirely of bristlecone pines bent and twisted by wind and frost. This hardy tree manages to live one of the longest lives on earth in one of the planet's most inhospitable environments. Above tree line the only plants that can survive are small tundra shrubs and wildflowers that huddle for shelter among the rocks. Some are found nowhere else in the world. Overhead, above Arizona's highest ridge, white-throated swifts dive and flash like miniature fighter planes as they feed on nearly invisible insects borne on the wind.

Humphreys Trail is steep and long and extremely rocky in its higher reaches. Above treeline it exposes you completely to the whims of nature. Here it may snow during any month of the year. In late summer monsoon storms can set the high country snapping with lightning. Be prepared to turn around and head for lower ground if a thunderstorm is brewing!

Once you do reach the summit ridge you'll feel like you're standing on top of the world. Off in the distance, the Grand Canyon, the Painted Desert, the mesas that are home to the Hopi Indians the Verde Valley and Oak Creek Canyon form a 360 degree panorama. And after you've seen it you'll be able to say you've been as high as you can get in Arizona.


Note: In the winter, a free Backcountry Permit is required when accessing the Kachina Peaks Wilderness from Arizona Snowbowl or Snowbowl Road. It can be obtained from either of the Forest Service offices in Flagstaff Monday - Friday during regular business hours, or at Arizona Snowbowl Agassiz Lodge on weekends. 


Avalanche Danger: Following winter storms, there may be increased danger of avalanches on steep slopes, and high elevations near and above the tree line. Check the Kachina Peaks Avalanche Center Snowpack Report and San Francisco Peaks Recreational Weather Forecast before hiking this trail or entering the backcountry.


Photos & Multimedia

At a Glance

Current Conditions: For current weather, visit National Weather Service. When there is snow on the San Francisco Peaks, check the Kachina Peaks Avalanche Center Snowpack Summary for avalanche danger information. Reports are, as of mid-March 2017, snow is deep, trail is hard-packed ice at upper reaches, and avalanche danger is present. 
Usage: Medium-Heavy
Best Season: Late Spring thru Fall
Closest Towns: Flagstaff, AZ
Operated By: Flagstaff Ranger District - 928-526-0866

General Information


Location: 14.5 miles northwest of Flagstaff on paved roads.

GPS (Map): 35°19'52.4"N 111°42'42.2"W

USGS Map: Humphreys Peak Quad

Access: From Flagstaff drive north on US 180 for 7 miles to FR 516, the Snowbowl Road. Drive 7.4 miles on this paved road to the lower parking lot of the Snowbowl facility. The trailhead is located at the north end of the parking lot (see photo).


Click on map thumbnail for larger view.

Humphreys Trail Map


General Notes:

Rating: Strenuous

Hiking Time: Approximately 3 to 4 hours (one way)


  • No mechanized or motorized vehicles, including bicycles, in Wilderness.
  • There is no hiking off-trail above treeline in order to protect the San Francisco Peaks Groundsel.
  • You may camp along the trail (a safe distance from the trail) but you must be at least a mile from Snowbowl property.
  • No camping above treeline (11,400')
  • Free Backcountry Permits are required in the winter. 

General Notes:

Recreation Map

Map showing recreational areas. Map Information



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  Area/Length : 
5 to 5.5 miles

  Latitude : 

  Longitude : 

  Elevation : 
9,266 - 12,633


Coconino Forest Districts

Districts on the Coconino Forest

Cover of the Red Rock Recreation Guide

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