more stats
2,989 ft
Distance
-405 ft
Descent
00:03:44
Avg time
-405 ft
Altitude change
9,442 ft
Altitude min
9,847 ft
Altitude max
9,847 ft
Altitude start
9,442 ft
Altitude end
-13.6%
Grade
-34.4%
Grade max
3.9%
Grade min
26 ft
Distance climb
2,894 ft
Distance down
66 ft
Distance flat
00:03:44
Avg time

Half Aspen Details

  • Activities
    • Mountain Bike
  • Riding Area
    Pajarito Bike Park
    Los Alamos, New Mexico
  • Difficulty Rating
    Blue Rate
  • Voted Difficulty
    Black Diamond (2 votes)
  • Local Popularity
    55 in Mountain Biking
  • Global Ranking
    #82174 in Mountain Biking
  • Trail Type
    Singletrack
  • Bike Type
    DH, AM, XC
  • Direction
    Downhill Primary
    Popular Direction Shown
  • Climb Difficulty
    Blue
  • Dogs Allowed
    Yes
  • TTFs on Trail
    Drop

If you don't mind putting in a few pedal strokes, this trail won't disappoint.

Once you're out of the trees, it gets fast and open.
Single track the whole way down.

There's a few small rock drops, that at low speed you can roll, but if you haul ass, are really fun.

Once you hit the road, you can head right'ish to hop on the bottom of Natural Selection, or take Camp May Road down to the base area.

Bike Park

Local Trail Association
Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 0 rides
  •  
6 Months
  • 3 rides
  • 8 miles avg distance
All
  • 121 rides
  • Last: Jun 6, 2026
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Half Aspen Trail Reports

statusdatedescription
May 9, 2026 @ 7:00pm (America/Denver)
May 9, 2026
 reporter
Jun 8, 2025 @ 10:07am
Jun 8, 2025
Jan 22, 2025 @ 8:22am
Jan 22, 2025
 Closed for winter
Jun 8, 2024 @ 5:38am
Jun 8, 2024
Jul 20, 2023 @ 11:29am
Jul 20, 2023
more »
Status:
on May 9, 2026
Avg: 4.11 (2 votes)
Your vote: 0

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      Directions to half-aspen trailhead (35.901860, -106.404470)
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      4.5 ★★★★★
      2 Ratings
      5 ★ 50%
      4 ★ 50%
      3 ★
      2 ★
      1 ★

      3 Reviews & Comments

      saltschuler
      Really great trail. If Paja had another 3 or 4 like this top to bottom it would be a destination!
      UtahJohn UtahJohn
      This is a fantastic blue trail. Pajarito needs more blues like this and Midway.
      lyophilization
      This fall, I've been working on fixing this trail up. Look for some new berms, and nasty spots to be fixed.

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      Nearby Trails

      Pajarito Bike Park

      • By lyophilizationTF Pro & contributors
      • #62666 - 1,217 views

      Frequently Asked Questions

      ▼ Where is Half Aspen located?
      Half Aspen is located in Pajarito Bike Park, Los Alamos, New Mexico, United States. It is part of the Pajarito Bike Park trail network. The trailhead is located at coordinates 35.90186, -106.40447.
      ▼ How hard is Half Aspen?
      Half Aspen is rated as Blue difficulty. The average grade is 13.6%. The climb difficulty is rated Blue.
      ▼ What is the elevation gain for Half Aspen?
      The trail has 405 ft of elevation descent. The elevation ranges from 9,442 ft to 9,847 ft.
      ▼ Is Half Aspen a point to point trail?
      Half Aspen is not a point to point trail. The direction is Downhill Primary. The trail type is singletrack.
      ▼ How long is Half Aspen?
      Half Aspen is 2,989 ft long. The trail type is singletrack.
      ▼ Are dogs allowed on Half Aspen?
      Yes, dogs are allowed on Half Aspen. Please keep dogs on a leash where required and clean up after them.
      ▼ When is the best time of year to ride Half Aspen?
      Based on activity log data, the most popular months to ride Half Aspen are:
      • June (12 activities)
      • August (8 activities)
      • September (6 activities)
      Check the reports page for current trail conditions.
      ▼ How do I access Half Aspen? Where is the closest parking trailhead?
      The closest parking and trailhead locations to Half Aspen are: View all parking locations in the area.
      ▼ How long does it take to ride Half Aspen?
      Based on recorded activities, it takes an average of 4 minutes to ride Half Aspen. The trail is 2,989 ft long. Actual times will vary based on fitness level, conditions, and pace. View recent activity logs for more details.
      ▼ How busy is Half Aspen?
      Half Aspen is a moderately popular trail. There have been 576 recorded activities on this trail. The trail has received 640 check-ins. View recent activity on this trail.

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