Fourmile Link Details
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Activities
- Mountain Bike
- Hike
- Trail Running
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Riding AreaBetasso Preserve
Boulder, Colorado -
Difficulty Rating
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Trail TypeSingletrack
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DirectionBoth Directions
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Climb DifficultyBlue
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Physical RatingModerate
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Trail VisibilityAlways easy to follow
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Dogs AllowedYes
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eBike Allowed
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Global Ranking
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Local Popularity75 in Mountain Biking [+]
- 55 in Trail Running
- 55 in Hiking
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Land Owner
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
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Please consider joining or donating to the local trail association to supportdonate to earn trail karma!
trail development & maintenance.
Traditionally Indigenous Territory
More Stats for Fourmile Link multi-use trail trail
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Altitude change31 ft
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Altitude min6,137 ft
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Altitude max6,304 ft
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Altitude start6,268 ft
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Altitude end6,299 ft
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Grade0.7%
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Grade max-51.5%
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Grade min31.2%
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Distance climb2,221 ft
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Distance down1,591 ft
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Distance flat469 ft
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Avg time00:09:12
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Avg reverse time00:09:57
- view trail stats
- Unknown
- Snow Groomed
- Snow Packed
- Snow Covered
- Snow Cover Partial
- Freeze/thaw Cycle
- Icy
- Prevalent Mud
- Wet
- Variable
- Ideal
- Dry
- Very Dry
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
- < 2 days
- < 1 week
- < 2 weeks
- < 1 month
- < 6 months
- > 6 months
- Downhill Only
- Downhill Primary
- Both Directions
- Uphill Primary
- Uphill Only
- One Direction
- Description
- Photos
- Description & Photos
- Videos
- most popular
- popular
- less popular
- not popular
- mountain biking recent
- mountain biking (>6 month)
- hiking (1 year)
- moto (1 year)
- Downhill Ski
- Backcountry Ski
- Nordic Ski
- Snowmobile
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SaveFourmile Link Trail Reports
Recent Ridelog Activity on Trail
- 2 rides
- 20 miles avg distance
- 39 rides
- 19 miles avg distance
- 241 rides
- Last: Jul 8, 2025
Photos
Routes with this trail
Trail Products
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Videos
Nearby Trails
- Benjamin Loop 1 mile
- Pines To Peaks Loop 1 mile
- Loop Link 1 mile
- Betasso (parking Lot Connector) 2 miles
- Canyon Loop 3 miles
- By todd
Trailforks & contributors
- #13664 - 4,257 views
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