more stats
4.1 miles
Distance
1,037 ft
Climb
-1,388 ft
Descent
01:31:04
Avg time
-351 ft
Altitude change
1,340 ft
Altitude min
2,429 ft
Altitude max
1,691 ft
Altitude start
1,339 ft
Altitude end
-1.6%
Grade
-49.1%
Grade max
61.1%
Grade min
2 miles
Distance climb
2 miles
Distance down
430 ft
Distance flat
01:31:04
Avg time

Alta Details

  • Activities
    • Mountain Bike
    • E-Bike
    • Horse
    • Hike
    • Trail Running
  • Riding Area
    South Mountain Preserve
    Phoenix, Arizona
  • Difficulty Rating
  • Voted Difficulty
    Black Diamond (2 votes)
  • Local Popularity
    30 in Mountain Biking [+]
    • 20 in E-Biking
    • 55 in Trail Running
    • 40 in Hiking
    • 5 in Horseback
  • Global Ranking
    #76175 in Mountain Biking [+]
    • #91025 in Trail Running
    • #111528 in Hiking
  • Trail Type
    Singletrack
  • Direction
    Both Directions
  • Dogs Allowed
    Yes
  • eBike Allowed
    Yes up to Class 1
  • Land Owner

The Western bottom section of this trail has been sanitized They destroyed the trail. Ive always been told if you have to add drains, then you're not doing it right. They've put in at least 5 drains on just the first 100 yards of this trail from San Juan, removed ALL of the rocks and put them on the side, and covered everything with dirt. Is this for horses? what is the deal. This trail has been fine for 50 years!

Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 1 rides
  • 9 miles average
6 Months
  • 5 rides
  • 8 miles avg distance
All
  • 44 rides
  • Last: Jul 11, 2026
c1c2c3c4
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Alta Trail Reports

statusdatedescription
Oct 5, 2025 @ 6:58pm (America/Phoenix)
Oct 5, 2025
I can clear this entire trail on an e-bike. Easily the gnarliest trail at south mountain and I never see anyone on it.
May 12, 2020 @ 6:10am
May 12, 2020
Jan 26, 2020 @ 8:44am
Jan 26, 2020
Not recommended for MTB unless you like to hike a bike.
Mar 31, 2019 @ 7:22am
Mar 31, 2019
Feb 11, 2017 @ 6:25pm
Feb 11, 2017
Forget riding up from the parking lot. This is a hiking trail. Even the best mountain biker will not ride through all the sections. Lots of bike...
more »
Status:
on Oct 5, 2025
Avg: 3.71 (8 votes)
Your vote: 0

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Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Snow Cover Partial
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Ideal
  • Dry
  • Very Dry
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  • Both Directions
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Slope Aspect
Direction the slope faces
Flat N NE E SE S SW W NW
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        Directions to alta trailhead (33.334080, -112.104060)

        Photos

        9 more »
        29 |
        Feb 7, 2026 @ 10:59am
        Feb 7, 2026
        73 |
        Feb 3, 2024 @ 6:40pm
        Feb 3, 2024
        73 |
        Feb 3, 2024 @ 6:40pm
        Feb 3, 2024
        421 |
        Jul 19, 2020 @ 3:35pm
        Jul 19, 2020

        Videos

        3 more »
        Almost Unrideable | Alta Trail at South...
        11:34 | 53 | Apr 25, 2026 , Phoenix
        MTB Alta Trail S. Mountain Phoenix
        14:14 | 474 | Apr 7, 2022 , Phoenix
        Alta Trail East (from the ridge)
        7:49 | 421 | Jan 17, 2022 , Phoenix

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        5 Reviews & Comments


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        • By toddTF Pro Trailforks & contributors
        • #14919 - 5,479 views

        Frequently Asked Questions About Alta

        Where is Alta located?
        Alta is located in South Mountain Preserve, Phoenix, Arizona, United States. It is part of the South Mountain Preserve trail network. The trailhead is located at coordinates 33.33408, -112.10406.
        How hard is Alta?
        Alta is rated as Double Black Diamond difficulty. The average grade is 1.6%.
        What is the elevation gain for Alta?
        Alta has 1,037 ft of elevation gain. The trail has 1,388 ft of elevation descent. The elevation ranges from 1,340 ft to 2,429 ft.
        Is Alta a point to point trail?
        Alta is not a point to point trail. The direction is Both Directions. The trail type is singletrack.

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