more stats
4.3 miles
Distance
615 ft
Climb
-2,046 ft
Descent
01:24:05
Avg time
-1,431 ft
Altitude change
5,912 ft
Altitude min
7,391 ft
Altitude max
7,344 ft
Altitude start
5,912 ft
Altitude end
-6.3%
Grade
-52%
Grade max
42%
Grade min
1 mile
Distance climb
3 miles
Distance down
505 ft
Distance flat
01:24:05
Avg time

Trail Details

  • Activities
    • Mountain Bike
    • Horse
    • Hike
    • Trail Running
  • Riding Area
    Mt Lemmon - Lower
    Tucson, Arizona
  • Ref Number
    B11
  • AKA
    AZT Passages for Mountain Bikes
  • Difficulty Rating
  • Voted Difficulty
    Double Black Diamond (4 votes)
  • Local Popularity
    60 in Mountain Biking [+]
    • 85 in Trail Running
    • 45 in Hiking
    • 5 in Horseback
  • Global Ranking
    #60690 in Mountain Biking [+]
    • #74888 in Trail Running
    • #140137 in Hiking
    • #1053 in Horseback
  • State Ranking
    #787 in Mountain Biking · Arizona [+]
    • #1,090 in Trail Running
    • #2,839 in Hiking
    • #128 in Horseback
  • Trail Type
    Singletrack
  • Bike Type
    AM
  • Direction
    Downhill Primary
    Popular Direction Shown
  • Season
    March-Nov
  • eBike Allowed
  • Land Owner

Don't let the distance fool you. This is a very tough ride. There are lots of drops, switchbacks, and plenty of exposure tot keep you on your toes. Plus about half-way into the ride there is a fairly long hike a bike section. That all being said this trail is a blast and has everything an All-Mountain rider could ask for. Most link a few of the other trails above or below for an awesome day of shuttling.

Access Info

Top Access is from the San Pedro Vista parking lot around mile post #17 on Mt Lemmon Highway.
Lower Access is from General Hitchcock Campground around mile post #12 on Mt Lemmon Highway.

Tags
ExposureHike-a-bikeSummitViews
Trail Supporters
Local Trail Association

Recent Activity on Trail

Past Week
  • 2 rides
  • 34 miles average
6 Months
  • 11 rides
  • 19 miles avg distance
All
  • 88 rides
  • Last: Sep 27, 2026
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update trails status or condition

AZT/BP - Green... Trail Reports

statusdatedescription
Jan 29, 2026 @ 10:44pm (America/Phoenix)
Jan 29, 2026
Snow patches at start and a few trees down.
May 2, 2025 @ 11:04pm
May 2, 2025
One or two trees down on Lemmon Drop on each trail from Aspen Draw down to Greens. Trails are dry and pretty loose. Greens was burlier than I...
Apr 26, 2025 @ 9:42am
Apr 26, 2025
Better trail if you leave the bike at home. Would save time and effort. Trees down. Washed and loose gravel. Can you ride it? Sure. If...
Jun 15, 2024 @ 2:12pm
Jun 15, 2024
One large downed tree in the top 1/3 of the trail. Super dry and loose. Section of trail completely washed away in the hike a bike section due to...
Nov 26, 2023 @ 6:34am
Nov 26, 2023
more »
Status:
on Jan 29, 2026
Snow Cover Partial
Avg: 3.76 (28 votes)
Your vote: 0

view (614)
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      Directions to azt-bp-green-mountain-21 trailhead (32.400340, -110.689730)

      Photos

      18 more »
      mtb
      534 |
      Oct 15, 2017 @ 5:28pm
      Oct 15, 2017
      mtb
      740 |
      Jan 13, 2016 @ 5:26am
      Jan 13, 2016
      mtb
      111 |
      Dec 29, 2024 @ 4:50pm
      Dec 29, 2024
      mtb
      109 |
      Dec 29, 2024 @ 4:50pm
      Dec 29, 2024

      Videos

      1 more »
      youtuber Best Mountain Biking in Tucson, AZ - Lemon Drop
      mtb
      14:15 | 1089 | Mar 16, 2020 , Tucson

      Trail Lists

      • Arizona Trail
        Arizona Trail
        160 trails
        National Scenic Trail or Official Route

      Routes with this trail

      ★ 3.6 • 31 miles • 3,652 ft • 13 • Shuttled •
      This is it, the real deal, the full Lemmon Drop. Its a 35mile punch in the face that will leave you...
      8 miles • 2,358 ft • 2 • Out & Back •
      3.7 ★★★★★
      28 Ratings
      5 ★ 36%
      4 ★ 29%
      3 ★ 14%
      2 ★ 14%
      1 ★ 7%

      21 Reviews & Comments

      MikeB0nes
      this trail, and really everything coming down lemmon, sucks awfully. calling this one of the best trails in az is disingenuous and misleading. it's not even the best trail on lemmon and don't even get me started on world class options in sedona or flag. this trail rides extremely awkwardly and has difficult to find/if present lines. i would recommend to no one.
      ZxhDZy
      The trail is currently pretty run down, especially at the beginning. There's a lot of loose rocks and fallen branches due to the monsoon rain so there's not that much grip at the moment. In addition there's a lot of bush overgrowth on some of the lines so be careful not to poke your fingers.
      Buffalo-Matt
      I think this is a red even by Tucson/Lemmon standards.

      It has its moments and the views are rad, but probably wouldn't rush to do it again without a local to show me the lines. Steep, loose, exposed, drops, switchbacks, HABs. If you're not bringing your A game and ready to commit to some no fall moves, check your ego at the door and plan on walking a fair bit.

      A few trees down on 5/24/25

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      • By bigworm520TF Pro TORCA & contributors
      • #7881 - 6,965 views

      Frequently Asked Questions

      ▼ Where is AZT/BP - Green Mountain #21 located?
      AZT/BP - Green Mountain #21 is located in Mt Lemmon - Lower, Tucson, Arizona, United States. It is part of the Mt Lemmon - Lower trail network. The trailhead is located at coordinates 32.40034, -110.68973.
      ▼ How hard is AZT/BP - Green Mountain #21?
      AZT/BP - Green Mountain #21 is rated as Black Diamond difficulty. The average grade is 6.3%.
      ▼ What is the elevation gain for AZT/BP - Green Mountain #21?
      AZT/BP - Green Mountain #21 has 615 ft of elevation gain. The trail has 2,046 ft of elevation descent. The elevation ranges from 5,912 ft to 7,391 ft.
      ▼ Is AZT/BP - Green Mountain #21 a point to point trail?
      AZT/BP - Green Mountain #21 is not a point to point trail. The direction is Downhill Primary. The trail type is singletrack.
      ▼ How long is AZT/BP - Green Mountain #21?
      AZT/BP - Green Mountain #21 is 4.3 miles long. The trail type is singletrack.
      ▼ Are dogs allowed on AZT/BP - Green Mountain #21?
      There is no information about dogs being allowed on AZT/BP - Green Mountain #21. Check with local trail managers or the trail page for the latest access rules.
      ▼ When is the best time of year to ride AZT/BP - Green Mountain #21?
      Based on activity log data, the most popular months to ride AZT/BP - Green Mountain #21 are:
      • April (13 activities)
      • October (8 activities)
      • November (7 activities)
      Check the reports page for current trail conditions.
      ▼ How do I access AZT/BP - Green Mountain #21? Where is the closest parking trailhead?
      The closest parking and trailhead locations to AZT/BP - Green Mountain #21 are: View all parking locations in the area.
      ▼ How long does it take to ride AZT/BP - Green Mountain #21?
      Based on recorded activities, it takes an average of 1 hour 21 minutes to ride AZT/BP - Green Mountain #21. The trail is 4.3 miles long. Actual times will vary based on fitness level, conditions, and pace. View recent activity logs for more details.
      ▼ How busy is AZT/BP - Green Mountain #21?
      AZT/BP - Green Mountain #21 is a moderately popular trail. There have been 592 recorded activities on this trail. The trail has received 614 check-ins. View recent activity on this trail.

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