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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
inches
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.
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.
SavePopular Trail Networks
view all areas »Activities Click to view
- Mountain Bike
372 trails
- E-Bike
121 trails
- Hike
572 trails
- Trail Running
571 trails
- Horse
174 trails
- Dirtbike/Moto
36 trails
- ATV/ORV/OHV
37 trails
Stats
- Avg Trail Rating
- Trails (view details)
- 585
- Trails Mountain Bike
- 372
- Trails E-Bike
- 121
- Trails Hike
- 572
- Trails Trail Running
- 571
- Trails Horse
- 174
- Trails Dirtbike/Moto
- 36
- Trails Observed Trials
- 7
- Trails ATV/ORV/OHV
- 37
- Trails Snowmobile
- 5
- Trails Snowshoe
- 28
- Trails Backcountry Ski
- 18
- Trails Nordic Ski
- 27
- Total Distance
- 769 miles
- Total Descent
- 125,958 ft
- Total Vertical
- 8,487 ft
- Highest Trailhead
- 13,460 ft
- Reports
- 9,073
- Photos
- 887
- Ridden Counter
- 81,740
Sub Regions
- Allenspark (9)
- Taylor Mountain (9)
- Boulder (154)
- Gunbarrel (13)
- Jamestown (0)
- Ceran Saint Vrain (11)
- Longmont (21)
- Louisville (15)
- Davidson Mesa (5)
- Lyons (20)
- Nederland (73)
- Magnolia (58)
- Mud Lake (6)
- Sugarloaf Mountain (1)
- Superior (9)
- Coyote Ridge (8)
- Ward (27)
- Erie Singletrack (9)
- Gold Hill (5)
Popular Boulder County Mountain Biking Trails
| status | title | difficulty | rating |
|---|---|---|---|
| Upper Bitterbrush Hall Ranch | |||
| Nelson Loop Hall Ranch | |||
| Lower Bitterbrush Hall Ranch | |||
| Antelope Hall Ranch | |||
| Loop Link Betasso Preserve | |||
| Benjamin Loop Betasso Preserve | |||
| Springbrook North Marshall Mesa/Doudy Draw/Flatirons Vista | |||
| Picture Rock Heil Valley Ranch | |||
| Springbrook Connector Marshall Mesa/Doudy Draw/Flatirons Vista | |||
| Springbrook South Marshall Mesa/Doudy Draw/Flatirons Vista | |||
| Canyon Loop Betasso Preserve | |||
| Coal Seam Marshall Mesa/Doudy Draw/Flatirons Vista | |||
| Community Ditch - West Marshall Mesa/Doudy Draw/Flatirons Vista | |||
| Mayhoffer Singletree (City) Marshall Mesa/Doudy Draw/Flatirons Vista | |||
| Dual Slalom Valmont Bike Park |
Boulder County Mountain Bike Routes
| title | rating | distance |
|---|---|---|
| Hall Ranch Technical Side Hall Ranch | 10 miles | |
| Buchanan Waterfall out-and-back Brainard Lake and Peaceful Valley | 7 miles | |
| Coney Buchanan Loop Brainard Lake and Peaceful Valley | 11 miles | |
| Betasso Loops Betasso Preserve | 7 miles | |
| Waldrop/Snowshoe Loop Brainard Lake and Peaceful Valley | 5 miles | |
| Hall Ranch: Intermediate Fun Hall Ranch | 7 miles | |
| Walker Out-and-Back to Stairs Walker Ranch | 11 miles | |
| Marshall Mesa Doudy Draw Loop Marshall Mesa/Doudy Draw/Flatirons Vista | 12 miles | |
| Hall Ranch Technical Descent Hall Ranch | 12 miles | |
| West Magnolia Tour Magnolia | 8 miles |
Photos of Boulder County Mountain Bike
trail: Fireman Hill
254 | | 2 comments
Apr 17, 2020 @ 7:39am
Apr 17, 2020
trail: Rattlesnake Gulch
217 |
Mar 9, 2019 @ 7:47am
Mar 9, 2019
trail: Walker Ranch Loop
481 |
Mar 9, 2019 @ 7:37am
Mar 9, 2019
trail: Davidson Mesa
80 |
Mar 9, 2019 @ 5:50am
Mar 9, 2019
trail: Canyon Loop
431 |
Apr 13, 2018 @ 7:40am
Apr 13, 2018
trail: Fourmile Link
270 |
Apr 13, 2018 @ 7:40am
Apr 13, 2018
trail: Mayhoffer Singletree (City)
380 |
Jun 6, 2017 @ 1:31pm
Jun 6, 2017Videos of Boulder County Mountain Bike
trail: Valmont Paved Pumptrack
|
Mar 28, 2022
trail: Upper Bitterbrush
28 |
Dec 10, 2020
trail: Aspen Alley
0:48 |
92 |
Sep 27, 2020
trail: Hot Lap
4:02 |
179 |
Jun 3, 2020
trail: Dog
0:20 |
131 |
May 18, 2020
trail: Lefthand Access 1
0:17 |
471 |
May 8, 2020
trail: Lefthand Access 1
|
May 8, 2020
trail: Lefthand Road
0:06 |
933 |
Mar 16, 2020
Current Trail Warnings
| status | trail | date | condition | user | info |
|---|---|---|---|---|---|
| Moffat Road Nederland | Jun 18, 2022 @ 1:54pm Jun 18, 2022 | Variable | Barryhickory | E-Bike Clear from 40 to base of trestle bridge.... | |
| Rollinsville Road Connector Magnolia | Jun 4, 2022 @ 3:22pm Jun 4, 2022 | Variable | Jarko1 | Lots of downed trees on southern half |
Recent Trail Reports
| status | trail | date | condition | info | user |
|---|---|---|---|---|---|
| Picture Rock Heil Valley Ranch | Jul 2, 2022 @ 12:12pm 13 hours | Dry | gmartinez146 | ||
| Caribou Flats 505.1 Jeep road Nederland | Jul 2, 2022 @ 8:20am 17 hours | Dry | WendyBMA BMA | ||
| West Shore Access Mud Lake | Jul 2, 2022 @ 8:20am 17 hours | Dry | WendyBMA BMA | ||
| Loop Link Betasso Preserve | Jul 1, 2022 @ 5:02pm 1 day | Dry | WendyBMA BMA | ||
| Fourmile Link Betasso Preserve | Jul 1, 2022 @ 5:02pm 1 day | Dry | WendyBMA BMA | ||
| Benjamin Loop Betasso Preserve | Jul 1, 2022 @ 5:02pm 1 day | Dry | WendyBMA BMA | ||
| Betasso Link Betasso Preserve | Jul 1, 2022 @ 5:02pm 1 day | Dry | WendyBMA BMA | ||
| Sourdough (South) Brainard Lake and Peaceful Valley | Jun 30, 2022 @ 10:10pm 2 days | Dry | WendyBMA BMA | ||
| South St Vrain Brainard Lake and Peaceful Valley | Jun 30, 2022 @ 10:09pm 2 days | Dry | WendyBMA BMA | ||
| Springbrook North Marshall Mesa/Doudy Draw/Flatirons Vista | Jun 29, 2022 @ 9:33am Jun 29, 2022 | Very Dry | gmartinez146 |
Activity Feed
| username | action | type | title | date | |
|---|---|---|---|---|---|
 | noahyunker | wishlist | region | Valmont Bike Park | Jul 2, 2022 @ 11:04pm 2 hours |
 | dthomp325 | ridden | trail | East Boulder (Middle) | Jul 2, 2022 @ 8:46pm 4 hours |
| gmartinez146 | add | report | Picture Rock | Jul 2, 2022 @ 3:06pm 10 hours |
| dariuszl | wishlist | route | West Mag Backcounty Route | Jul 2, 2022 @ 2:53pm 10 hours |
 | WendyBMA | add | report | West Shore Access | Jul 2, 2022 @ 2:37pm 10 hours |
Recent Comments
| username | type | title | comment | date | |
|---|---|---|---|---|---|
| trail | Do not ride up this trail like a Jerry..all... | Jun 19, 2022 @ 11:40am Jun 19, 2022 | ||
| trail | Great area, but mtb folks need to slow down. ... | May 25, 2022 @ 9:30am May 25, 2022 | ||
| trail | Ha definitely not a black and maybe a blue in... | May 25, 2022 @ 9:14am May 25, 2022 | ||
| trail | Big snow drifts… needs a bit of melting... | May 11, 2022 @ 8:08pm May 11, 2022 | ||
| trail | This is arguably a double black diamond trail... | Apr 24, 2022 @ 6:47pm Apr 24, 2022 |
Local Badges
-
Big Ride 30k11,401 awarded -
Epic Ride 50k4,439 awarded -
10 Blue Trails538 awarded -
10 Green Trails655 awarded -
10 Blue Trails193 awarded -
Completionist0 awarded
Bike & Skill Parks
| name | type | city | rating |
|---|---|---|---|
| Lyons Bike Park | skill park | Lyons | |
| Twin Lakes Dirt Jump Park | skill park | Gunbarrel | |
| Valmont Bike Park | skill park | Boulder | |
| Velosolutions Pump Track Superior, Colorado | skill park | Superior |
Local Products
Activity Type Stats
| activitytype | trails | distance | descent | descent distance | total vertical | rating | global rank | state rank | photos | reports | routes | ridelogs |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mountain Bike | 372 | 502 miles | 62,493 ft | 216 miles | 6,709 ft | 751 | 8,935 | 67 | 99,726 | |||
| E-Bike | 121 | 221 miles | 16,631 ft | 89 miles | 6,693 ft | 5,612 | 1,499 | |||||
| Hike | 572 | 760 miles | 125,358 ft | 335 miles | 8,488 ft | 145 | 8,677 | 68 | 6,057 | |||
| Trail Running | 571 | 754 miles | 124,639 ft | 333 miles | 8,488 ft | 8,676 | 67 | 5,377 | ||||
| Horse | 174 | 227 miles | 40,240 ft | 108 miles | 7,503 ft | 2,558 | 44 | 3 | ||||
| Dirtbike/Moto | 36 | 90 miles | 8,878 ft | 39 miles | 4,386 ft | 2,168 | 1 | 11 | ||||
| Observed Trials | 7 | 15 miles | 1,427 ft | 7 miles | 1,788 ft | 2 | 14 | 6 | ||||
| ATV/ORV/OHV | 37 | 93 miles | 8,983 ft | 40 miles | 4,386 ft | 2,168 | 1 | 1 | ||||
| Snowmobile | 5 | 11 miles | 801 ft | 3 miles | 1,148 ft | 13 | 1 | 1 | ||||
| Snowshoe | 28 | 53 miles | 6,696 ft | 20 miles | 6,309 ft | 208 | 43 | 110 | ||||
| Backcountry Ski | 18 | 32 miles | 1,893 ft | 8 miles | 3,504 ft | 186 | 868 | |||||
| Nordic Ski | 27 | 55 miles | 6,949 ft | 22 miles | 3,504 ft | 208 | 10 | 513 |
- By roaming50
& contributors - Admins: jpmcghee, msmcfate, cmcquade, BMA, darmabum, getvert, jgebben, mpopetz, Pumpntrail, Iowegian
- #15769 - 11,831 views
- boulder county activity log | embed map of Boulder County mountain bike trails | boulder county mountain biking points of interest
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