more stats
2.3 miles
Distance
401 ft
Climb
-612 ft
Descent
00:41:20
Avg time
-211 ft
Altitude change
5,628 ft
Altitude min
6,197 ft
Altitude max
5,882 ft
Altitude start
5,671 ft
Altitude end
-39.519%
Grade max
27.715%
Grade min
1 mile
Distance climb
1 mile
Distance down
857 ft
Distance flat
00:41:20
Avg time

Mt Hillyer Trail Details

  • Activities
    • Mountain Bike
    • Hike
    • Trail Running
  • Riding Area
    Chilao-Charlton
    Altadena, California
  • Ref Number
    11W27
  • Difficulty Rating
  • Voted Difficulty
    Black Diamond (1 vote)
  • Local Popularity
    75 in Mountain Biking [+]
    • 80 in Trail Running
    • 65 in Hiking
  • Global Ranking
    #56093 in Mountain Biking [+]
    • #72491 in Trail Running
    • #96414 in Hiking
  • Hiking SAC Scale
    T2 Mountain Hiking
  • Trail Type
    Singletrack
  • Bike Type
    AM, XC
  • Direction
    Both Directions
    Popular Direction Shown
  • Climb Difficulty
    Black Diamond
  • Physical Rating
    Hard
  • Trail Visibility
    Always easy to follow
  • Dogs Allowed
    Yes
  • eBike Allowed

The Mount Hillyer Trail starts on the Santa Clara Divide Road at Rosenita Saddle. A steady climb ramps up in difficulty to a 'test piece' switchback that stymies most attempts to climb. Once the ridge top is attained, a long, rolling section through meadows and open ponderosa pine forest leads to the summit of Mount Hillyer. The terrain becomes increasingly rocky, and there are many boulder gardens, 'slickrock' areas, and ramped logs. The trail eventually mellows and intersects with the Silver Moccasin Trail near Horse Flats CG.

Trail Supporters

  • USFS
    Land Manager
Local Trail Association
Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 0 rides
  •  
6 Months
  • 5 rides
  • 18 miles avg distance
All
  • 51 rides
  • Last: Jul 9, 2026
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Mt Hillyer Trail Trail Reports

Status:
on Nov 22, 2025
Snow Cover Partial
Avg: 4.38 (7 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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  • Videos
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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 mt-hillyer-trail trailhead (34.355590, -118.012080)

        Photos

        11 more »
        63 |
        Feb 9, 2026 @ 8:42pm
        Feb 9, 2026
        84 |
        Jun 13, 2024 @ 10:44pm
        Jun 13, 2024
        68 |
        Jun 13, 2024 @ 10:44pm
        Jun 13, 2024
        65 |
        Jun 13, 2024 @ 10:44pm
        Jun 13, 2024

        Videos

        3 more »
        MT. HILLYER, ALWAYS FINDING NEW LINES : MTB
        7:27 | 512 | May 17, 2021 , Altadena
        Hillyer Trail-Angeles National Forest (MTB)
        9:28 | 467 | Nov 29, 2020 , Altadena
        Mt Hillyer! Part of Mt Wilson Enduro Day Dec 2018
        6:01 | 494 | Aug 22, 2019 , Altadena

        Routes with this trail

        4.0 3 miles 346 ft 2 Shuttled
        Shuttle Route in the backcountry
        3.0 13 miles 1,667 ft 2 Loop
        Trail begins with some flowy singletrack. There are a few blue/black technical sections along the trail.

        1 Review & Comments


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        • By BlazeNawaY & contributors
        • #35694 - 4,189 views

        Frequently Asked Questions About Mt Hillyer Trail

        Where is Mt Hillyer Trail located?
        Mt Hillyer Trail is located in Chilao-Charlton, Altadena, California, United States. It is part of the Chilao-Charlton trail network. The trailhead is located at coordinates 34.35559, -118.01208.
        How hard is Mt Hillyer Trail?
        Mt Hillyer Trail is rated as Black Diamond difficulty. The physical rating is Hard. The climb difficulty is rated Black Diamond.
        What is the elevation gain for Mt Hillyer Trail?
        Mt Hillyer Trail has 401 ft of elevation gain. The trail has 612 ft of elevation descent. The elevation ranges from 5,628 ft to 6,197 ft.
        Is Mt Hillyer Trail a point to point trail?
        Mt Hillyer Trail is not a point to point trail. The direction is Both Directions. The trail type is singletrack.

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