A narrow dirt hiking trail winds through a dense aspen forest near Humphreys Peak in northern Arizona.
Points of Interest

Inner Basin Trailhead

Flagstaff's classic aspen-season hike into the Peaks

(158)
Flagstaff, AZ

About

Inner Basin Trailhead sits inside the San Francisco Peaks, about 80 miles south of the South Rim, and it's the trail Flagstaff locals point out-of-towners toward every autumn. The route climbs through Lockett Meadow into a bowl of aspens ringed by the Peaks' old volcanic rim, and when the leaves turn in late September and early October, it's one of the most reliable fall-color hikes in Arizona.

What to expect

Reviewers consistently flag it as an easy, well-graded trail — about 10 miles round trip with a steady but manageable incline — though the approach eats more time than people expect. Multiple recent reviews note the drive up the forest road from the parking area can take 1 to 1.5 hours on its own, and on busy fall weekends the gates may close, adding a few extra miles on foot just to reach the trailhead. A midsize SUV without four-wheel drive has been enough for some visitors, but the road is rough and conditions vary by season.

  • Rating: 4.8 stars from 157 Google reviews
  • Hours: Monday-Friday, 8:00 AM-4:00 PM; closed weekends
  • Managed by: Coconino National Forest (U.S. Forest Service)
  • Best time: late September through mid-October for aspen color

Bring the whole day, not just the hike — between the access road and the walk itself, this is more of a half-day-plus outing than a quick stop.

Reviews (158)

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4.8

158 reviews

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We went early in the morning, got there by 9 and found the last parking spot. It was cold (mid October). We just missed all the beautiful fall colors but could tell it would have been stunning in it's full glory. The road up there is rough but we made it fine in our midsize SUV without four wheel drive.

If you are going for the Yellow leaves. Bynthis time they all should have fall. It's an amazing place to walk anyway and the view is awesome. I was told that it's better to visit it the first 2 weeks of October for the Yellow forest. It's an easy trail but is a 10 mile walk so be prepared with electrolytes.

John
John

11 months ago

Great views during the fall. Pretty good hike. If you are going during the weekend prepare for an extra 3 mile hike up. The gates will be closed.

Derrick Brandt
Derrick Brandt

2 years ago

If you are heading to see the aspens during the fall, this is a must see…. Definitely worth the hike but do note from the parking lot it is a good 1-1.5 hrs just to get to the trail head and another 20-30mins to the scenic aspens. Don’t expect to get out of the car and go around a couple of bends and you are there. Definitely a nice hike.

Alicia
Alicia

6 years ago

Great fall hike. Okay, the drive was pretty scary but everyone was very respectful and waited for oncoming traffic. It wasn't as busy as I thought which is great. I didn't think the hike was that hard, but it is on an incline. Once you get to the inner basin which I like to call the "aspen wonderland" you truly feel like you're on a different hike. Nothing but beautiful golden leaves that were all over. The trees still had leaves when I went two weeks ago. Took my pup. Had a great time. Nothing like the crisp fall smell.

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