4,201 ft
Distance
228 ft
Climb
-216 ft
Descent
00:09:21
Avg time

Fourmile Link Details

  • Activities
    • Mountain Bike
    • Hike
    • Trail Running
  • Riding Area
    Betasso Preserve
    Boulder, Colorado
  • Difficulty Rating
    Blue rate
  • Trail Type
    Singletrack
  • Direction
    Both Directions
  • Climb Difficulty
    Blue
  • Physical Rating
    Moderate
  • Trail Visibility
    Always easy to follow
  • Dogs Allowed
    Yes
  • eBike Allowed
    No
  • Global Ranking
    #9051 in Mountain Biking [+]
    • #43690 in Trail Running
    • #23517 in Hiking
  • Local Popularity
    75 in Mountain Biking [+]
    • 70 in Trail Running
    • 80 in Hiking
  • Land Manager
    Boulder County Parks & Open Space

Trail trail is a bi-directional link from Four Mile Canyon road to the Benjamin Loop at Betasso. Trail is blue intermediate but there are two small staircases that most people walk.

Access Info

The Fourmile Link can be accessed 2.7 miles up Fourmile Canyon Drive from Boulder Canyon Drive. Look for a small pullout and a guardrail on the south side of the road.

Disclaimer

Trail closed to bikes on Wednesday and Saturdays.

Local Trail Association
Traditionally Indigenous Territory
More Stats for Fourmile Link mountain bike trail trail
  • Altitude change
    12 ft
  • Altitude min
    6,145 ft
  • Altitude max
    6,295 ft
  • Altitude start
    6,276 ft
  • Altitude end
    6,288 ft
  • Grade
    0.289%
  • Grade max
    -34.355%
  • Grade min
    29.25%
  • Distance climb
    2,194 ft
  • Distance down
    1,952 ft
  • Distance flat
    55 ft
  • Avg time
    00:09:21
  • Avg reverse time
    00:09:39
  • view trail stats
Status:
on May 22, 2022
Variable
Avg: 4.65 (3 votes)
Your vote: 0

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  • Basemap 
  • Trail Style 
    • ?
  • Activity Type  
Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Snow Cover Inadequate
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Ideal
  • Dry
  • Very Dry
Trail Flow (Ridden Direction)
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The colour categories are based on what percentage of riders are riding a trail in its intended direction.
  • > 96%
  • > 90%
  • > 80%
  • > 70%
  • > 50%
  • < 50%
  • bi-directional trail
  • no data
Trail Last Ridden
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  • < 2 days
  • < 1 week
  • < 2 weeks
  • < 1 month
  • < 6 months
  • > 6 months
Trail Ridden Direction
The intended direction a trail should be ridden.
  • Downhill Only
  • Downhill Primary
  • Both Directions
  • Uphill Primary
  • Uphill Only
  • One Direction
Contribute Details
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Trail Popularity ?
Trailforks scans ridelogs to determine which trails are ridden the most in the last 9 months. Trails are compared with nearby trails in the same city region with a possible 25 colour shades. Think of this as a heatmap, more rides = more kinetic energy = warmer colors.
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Max Vehicle Width
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Radar Time
x Activity Recordings
Trailforks users anonymized public ridelogs from the past 6 months.
  • mountain biking recent
  • mountain biking (>6 month)
  • hiking (1 year)
  • moto (1 year)
Activity Recordings
Trailforks users anonymized public skilogs from the past 12 months.
  • Downhill Ski
  • Backcountry Ski
  • Nordic Ski
Jump Magnitude Heatmap
Heatmap of where riders jump on trails. Zoom in to see individual jumps, click circles to view jump details.
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      Directions to fourmile-link trailhead (40.038460, -105.350770)
      update trails status or condition

      Fourmile Link Trail Reports

      statusdatedescription
      May 22, 2022 @ 9:32am
      1 day
      		 reporter From the Betasso Ranger, Snow is melting quickly at Betasso, but come prepared for snowy/muddy trail conditions."
      May 8, 2022 @ 5:01am
      May 8, 2022
      Apr 14, 2022 @ 10:06am
      Apr 14, 2022
      Mar 27, 2022 @ 3:20pm
      Mar 27, 2022
      		 reporter The Benjamin connector to 4 Mile still has a lot of long snow pack sections and is probably best avoided for now.
      Jan 25, 2022 @ 5:52pm
      Jan 25, 2022
      		 reporter From Betasso Ranger, "5-7" of new snow."
      view all reports »

      Recent Ridelog Activity on Trail

      Past Week
      • 4 rides
      • 11 miles avg distance
      6 Months
      • 139 rides
      • 16 miles avg distance
      All
      • 1,447 rides
      •  

      Technical Trail Features (TTF)

      Photos

      more »
      64 |
      Aug 8, 2019 @ 12:46pm
      Aug 8, 2019
      60 |
      Aug 8, 2019 @ 12:34pm
      Aug 8, 2019
      57 |
      Aug 8, 2019 @ 12:30pm
      Aug 8, 2019
      262 |
      Apr 13, 2018 @ 7:40am
      Apr 13, 2018

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      Nearby Trails

      Betasso Preserve

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