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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)
Trailforks scans users ridelogs to determine the most popular direction each trail is ridden. A good flowing trail network will have most trails flowing in a single direction according to their intension.
The colour categories are based on what percentage of riders are riding a trail in its intended direction.
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
Trailforks scans ridelogs to determine the last time a trail was ridden.
- < 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
Colors indicate trail is missing specified detail.
- Description
- Photos
- Description & Photos
- Videos
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.
- most popular
- popular
- less popular
- not popular
ATV/ORV/OHV Filter
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
- Snowmobile
Winter Trails
Warning
A routing network for winter maps does not exist. Selecting trails using the winter trails layer has been disabled.
x
Missing Trails
Most Popular
Least Popular
Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
Jump Magnitude Heatmap
Heatmap of where riders jump on trails. Zoom in to see individual jumps, click circles to view jump details.
Trails Deemphasized
Trails are shown in grey.
Only show trails with NO bikes.
Save the current map location and zoom level as your default home location whenever this page is loaded.
SaveThis area span the the iconic Flatirons open space area with hiking trails to the tops of South Boulder Peak, Bear Peak, Green Mountain, Flagstaff and Mount Sanitas. For less strenuous climbing, check out the Mesa trail and NCAR and Chautauqua trail heads for mellow loops through meadows and trees.
google parking directions Activities Click to view
- Hike
111 trails
- Mountain Bike
2 trails
- Horse
60 trails
- Trail Running
111 trails
Region Details
- 1
- 1
Region Status
Caution as of Aug 28, 2022Stats
- Avg Trail Rating
- Trails (view details)
- 106
- Trails Mountain Bike
- 2
- Trails E-Bike
- 1
- Trails Horse
- 60
- Trails Hike
- 111
- Trails Trail Running
- 111
- Trails Snowshoe
- 1
- Total Distance
- 70 miles
- Total Descent
- 17,467 ft
- Total Vertical
- 3,202 ft
- Highest Trailhead
- 8,476 ft
- Reports
- 655
- Photos
- 46
- Ridden Counter
- 12,665
Popular Boulder Open Space Mountain Biking Trails
| status | title | difficulty | rating |
|---|---|---|---|
| Chapman Drive | |||
| Tenderfoot Trail |
Photos of Boulder Open Space Mountain Bike
trail: Gregory Canyon
1 |
Jun 30, 2023 @ 10:26am
Jun 30, 2023
trail: Gregory Canyon
1 |
Jun 30, 2023 @ 10:26am
Jun 30, 2023
trail: Gregory Canyon
1 |
Jun 30, 2023 @ 10:26am
Jun 30, 2023
trail: Gregory Canyon
1 |
Jun 30, 2023 @ 10:26am
Jun 30, 2023
trail: Gregory Canyon
1 |
Jun 30, 2023 @ 10:26am
Jun 30, 2023
trail: Gregory Canyon
1 |
Jun 30, 2023 @ 10:26am
Jun 30, 2023
trail: Gregory Canyon
2 |
Jun 30, 2023 @ 10:26am
Jun 30, 2023
trail: Gregory Canyon
3 |
Jun 30, 2023 @ 10:26am
Jun 30, 2023
Recent Trail Reports
| status | trail | date | condition | info | user |
|---|---|---|---|---|---|
| Boulder Canyon Trail Fourmile Connection | Sep 21, 2023 @ 8:42am Sep 21, 2023 | Very Dry | jvfish1 Birkie | ||
| Chapman Drive | Aug 1, 2023 @ 2:50am Aug 1, 2023 | Dry | jvfish1 Birkie | ||
| Parking Connector | Apr 8, 2023 @ 9:53pm Apr 8, 2023 | Dry | giniek27 | ||
| Parking Connector | Aug 16, 2022 @ 9:08am Aug 16, 2022 | Wet | 1Hunter-R Map Team |
Activity Feed
| username | action | type | title | date |
|---|---|---|---|---|
| jvfish1 | add | report | Boulder Canyon Trail Fourmile Connection | Sep 25, 2023 @ 12:39pm 21 hours |
| Rbusfield | wishlist | trail | Chapman Drive | Sep 16, 2023 @ 9:40pm Sep 16, 2023 |
| rhanstuedle | add | report | Chautauqua | Aug 30, 2023 @ 6:10am Aug 30, 2023 |
| willerules | vote | trail | Boulder Canyon Trail Fourmile Connection | Aug 23, 2023 @ 10:27am Aug 23, 2023 |
| rhanstuedle | add | report | Chautauqua | Aug 14, 2023 @ 11:20am Aug 14, 2023 |
Nearby Areas
| name | distance | ||||
|---|---|---|---|---|---|
| The People's Crossing Park | 2.7 km | ||||
| CU South Campus | 5 | 1 | 3.1 km | ||
| Walker Ranch | 1 | 1 | 3.2 km | ||
| Betasso Preserve | 4 | 1 | 4 km | ||
| Valmont Bike Park | 7 | 8 | 2 | 4.7 km |
Local Products
Activity Type Stats
| activitytype | trails | distance | descent | descent distance | total vertical | rating | global rank | state rank | photos | reports | routes | ridelogs |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mountain Bike | 2 | 3 miles | 16 ft | 446 ft | 955 ft | #2,943 | #1,501 | 641 | 4,871 | |||
| E-Bike | 1 | 516 | 23 | |||||||||
| Horse | 60 | 43 miles | 10,240 ft | 21 miles | 2,851 ft | #1,358 | 138 | 1 | ||||
| Hike | 111 | 70 miles | 17,467 ft | 31 miles | 3,202 ft | #2,332 | #1,361 | 46 | 654 | 9 | 3,726 | |
| Trail Running | 111 | 70 miles | 17,467 ft | 31 miles | 3,202 ft | #2,336 | #1,358 | 654 | 9 | 3,119 | ||
| Snowshoe | 1 | 899 ft | 43 ft | 7 | 2 |
- By canadaka
Trailforks & contributors - Admins: WendyBMA, BMA, darmabum, getvert, mpopetz, Pumpntrail, Iowegian
- #28281 - 2,928 views
- boulder open space activity log | embed map of Boulder Open Space mountain bike trails | boulder open space mountain biking points of interest
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