more stats
1.7 miles
Distance
541 ft
Climb
-4 ft
Descent
00:17:24
Avg time
537 ft
Altitude change
8,489 ft
Altitude min
9,027 ft
Altitude max
8,489 ft
Altitude start
9,026 ft
Altitude end
5.9%
Grade
-3.1%
Grade max
30.9%
Grade min
2 miles
Distance climb
423 ft
Distance down
390 ft
Distance flat
00:17:24
Avg time

Boulder Details

  • Activities
    • Mountain Bike
    • Adaptive Bike
    • Hike
    • Trail Running
  • Riding Area
    Deer Valley Resort
    Park City, Utah
  • Difficulty Rating
  • Local Popularity
    25 in Mountain Biking [+]
    • 5 in Trail Running
    • 35 in Hiking
    • 5 in Adaptive Biking
  • Global Ranking
    #151531 in Mountain Biking [+]
    • #349963 in Trail Running
    • #158411 in Hiking
    • #18165 in Adaptive Biking
  • State Ranking
    #2,828 in Mountain Biking · Utah [+]
    • #5,965 in Trail Running
    • #3,984 in Hiking
    • #499 in Adaptive Biking
  • Hiking SAC Scale
    T2 Mountain Hiking
  • Trail Exposure
    Normal
  • Trail Type
    Singletrack
  • Bike Type
    AM, XC, Adaptive MTB
  • Direction
    Both Directions
    Popular In Reverse
  • Climb Difficulty
    Blue
  • Physical Rating
    Moderate
  • eBike Allowed
  • TTFs on Trail
    Berm
  • Land Owner
    Deer Valley Resort

This is a bi-directional, old-school trail. It is mostly used as a climb to moose-bones. Most of the turns have no-directional berms. There are shaded pine tree groves and lots of sharp rocks. The trail opens up just for a bit at the dirt road, then continues down to Midmountain.

Adaptive Bike Info
aMTB Blue Rating: Intermediate features and steeper terrain.

24-30” wide. On camber. No exposure. Tight switch-backs; expect multipoint turns. Sudden steep grunts with loose kitty litter. A good time? Maybe. But better than team big bear.

There is a single obstacle of note:
A large “ bomb hole” (I think a former mineshaft) is located after the 4th switchback going uphill. It is narrow, at roughly 30 inches wide and descend sharply about 6 feet before rising roughly 4 feet. It is very doable on a narrower Adaptive bike. Consider a spotter if you have a wider bike, but the feature has limited spotting potential and has some fairly significant consequence.

Warning - riding down you may struggle to get through “ the bomb hole” on (located after the second downhill switchback after boulder and TDSconvergence ) as it is quite steep to get out of going downhill. My recommendation is to off-road it through the light gradient downhill if you need to avoid the obstacle.

Tags
Berms

Bike Park

Local Trail Association

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  • Please consider joining or donating to the local trail association to support
    trail development & maintenance.

Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 0 rides
  •  
6 Months
  • 27 rides
  • 20 miles avg distance
All
  • 264 rides
  • Last: Oct 18, 2026
update trails status or condition

Boulder Trail Reports

Status:
on Oct 5, 2026
Dry
Avg: 3.42 (10 votes)
Your vote: 0

view (1,241)
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      Directions to boulder trailhead (40.616760, -111.505380)

      Photos

      25 more »
      mtb
      216 |
      Jun 5, 2009 @ 4:46pm
      Jun 5, 2009
      mtb
      82 |
      Jul 20, 2023 @ 10:51am
      Jul 20, 2023
      mtb
      81 |
      Jul 20, 2023 @ 10:51am
      Jul 20, 2023
      mtb
      77 |
      Jul 20, 2023 @ 10:51am
      Jul 20, 2023

      Videos

      no videos have been added for Boulder yet, add a video.

      Routes with this trail

      ★ 2.4 • 53 miles • 7,935 ft • 96 • Loop •
      You are turning 50, go ride 50 Miles. Route starts at the bottom of Freemason Trail (park somewhere nearby...
      ★ 1.0 • 53 miles • 6,910 ft • 77 • Loop •
      Ride from PCMR parking lot, to Deer Valley, up to mid mountain, up to crest, down to PCMR (eat a meal),...
      31 miles • 4,919 ft • 70 • Loop •
      This loop starts out on Armstrong and then uses Mid-Mountain as a way of accessing multiple higher...
      2.9 ★★★★★
      10 Ratings
      5 ★
      4 ★ 30%
      3 ★ 40%
      2 ★ 20%
      1 ★ 10%

      1 Review & Comments

      mkb5150 mkb5150
      The description, while not necessarily inaccurate, made me think this trail would be at least a little entertaining. It is not.

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      • By toddTF Pro Trailforks & contributors
      • #11524 - 4,400 views

      Frequently Asked Questions

      ▼ Where is Boulder located?
      Boulder is located in Deer Valley Resort, Park City, Utah, United States. It is part of the Deer Valley Resort trail network. The trailhead is located at coordinates 40.61676, -111.50538.
      ▼ How hard is Boulder?
      Boulder is rated as Blue difficulty. The physical rating is Moderate. The average grade is 5.9%. The climb difficulty is rated Blue.
      ▼ What is the elevation gain for Boulder?
      Boulder has 541 ft of elevation gain. The trail has 4 ft of elevation descent. The elevation ranges from 8,489 ft to 9,027 ft.
      ▼ Is Boulder a point to point trail?
      Boulder is not a point to point trail. The direction is Both Directions. The trail type is singletrack.
      ▼ How long is Boulder?
      Boulder is 1.7 miles long. The trail type is singletrack.
      ▼ Are dogs allowed on Boulder?
      There is no information about dogs being allowed on Boulder. Check with local trail managers or the trail page for the latest access rules.
      ▼ How do I access Boulder? Where is the closest parking trailhead?
      The closest parking and trailhead locations to Boulder are: View all parking locations in the area.
      ▼ How long does it take to ride Boulder?
      Based on recorded activities, it takes an average of 17 minutes to ride Boulder. The trail is 1.7 miles long. Actual times will vary based on fitness level, conditions, and pace. View recent activity logs for more details.
      ▼ How busy is Boulder?
      Boulder is a less popular trail with lighter traffic. There have been 1,251 recorded activities on this trail. The trail has received 1,241 check-ins. View recent activity on this trail.

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