more stats
1,175 ft
Distance
-149 ft
Descent
00:02:22
Avg time
-149 ft
Altitude change
9,600 ft
Altitude min
9,749 ft
Altitude max
9,749 ft
Altitude start
9,600 ft
Altitude end
-12.7%
Grade
-25.9%
Grade max
-3.1%
Grade min
1,152 ft
Distance down
20 ft
Distance flat
00:02:22
Avg time

Boulder Mason Details

  • Activities
    • Mountain Bike
  • Riding Area
    Crested Butte Mountain Bike Park
    Crested Butte, Colorado
  • Difficulty Rating
    Black Diamond Rate
  • Voted Difficulty
    Double Black Diamond (1 vote)
  • Local Popularity
    45 in Mountain Biking
  • Global Ranking
    #103856 in Mountain Biking
  • State Ranking
    #2,096 in Mountain Biking · Colorado
  • Trail Type
    Singletrack
  • Dogs Allowed
    Yes

This is a spur from Avery, and it is rated a single diamond, but it is more difficult and rocky than Avery. If you combine the rocky sections of Avery and condense them, that is Boulder Mason.

Tags
Rocky
Trail Supporters

Bike Park

Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 0 rides
  •  
6 Months
  • 21 rides
  • 24 miles avg distance
All
  • 138 rides
  • Last: Sep 20, 2026
c1c2c3c4
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Status:
on Jun 13, 2026
Dry
Avg: 4.19 (4 votes)
Your vote: 0

view (1,139)
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      Directions to boulder-mason trailhead (38.899410, -106.957270)
      View on Discover Map

      Photos

      3 more »
      mtb
      194 |
      Aug 8, 2023 @ 9:26am
      Aug 8, 2023
      mtb
      52 |
      Oct 9, 2022 @ 2:00pm
      Oct 9, 2022
      mtb
      143 |
      Sep 6, 2021 @ 7:54pm
      Sep 6, 2021

      Videos

      2 more »
      US Mountain Bike Championships Mountain Cross
      mtb
      2:07 | 620 | Jul 28, 2009 , Crested Butte
      Mountain States Cup #4 Mountain Cross
      mtb
      3:27 | 356 | Jul 23, 2009 , Crested Butte

      Trail Products

      4.5 ★★★★★
      4 Ratings
      5 ★ 50%
      4 ★ 50%
      3 ★
      2 ★
      1 ★

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      Nearby Trails

      Crested Butte Mountain Bike Park

      • By toddTF Pro Trailforks & contributors
      • #85543 - 1,702 views

      Frequently Asked Questions

      ▼ Where is Boulder Mason located?
      Boulder Mason is located in Crested Butte Mountain Bike Park, Crested Butte, Colorado, United States. It is part of the Crested Butte Mountain Bike Park trail network. The trailhead is located at coordinates 38.89941, -106.95727.
      ▼ How hard is Boulder Mason?
      Boulder Mason is rated as Black Diamond difficulty. The average grade is 12.7%.
      ▼ What is the elevation gain for Boulder Mason?
      The trail has 149 ft of elevation descent. The elevation ranges from 9,600 ft to 9,749 ft.
      ▼ How long is Boulder Mason?
      Boulder Mason is 1,175 ft long. The trail type is singletrack.
      ▼ Are dogs allowed on Boulder Mason?
      Yes, dogs are allowed on Boulder Mason. Please keep dogs on a leash where required and clean up after them.
      ▼ How do I access Boulder Mason? Where is the closest parking trailhead?
      The closest parking and trailhead locations to Boulder Mason are: View all parking locations in the area.
      ▼ How long does it take to ride Boulder Mason?
      Based on recorded activities, it takes an average of 2 minutes to ride Boulder Mason. The trail is 1,175 ft long. Actual times will vary based on fitness level, conditions, and pace. View recent activity logs for more details.
      ▼ How busy is Boulder Mason?
      Boulder Mason is a moderately popular trail. There have been 822 recorded activities on this trail. The trail has received 1,139 check-ins. View recent activity on this trail.

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