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Trail Conditions
- Unknown
- Snow Groomed
- Snow Packed
- Snow Covered
- Snow Cover Partial
- 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
US Cell Coverage
Legend
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.
SavePopular Trail Networks
view all areas »Activities Click to view
- Mountain Bike
531 trails
- E-Bike
240 trails
- Horse
228 trails
- Hike
765 trails
- Trail Running
764 trails
- Dirtbike/Moto
52 trails
- ATV/ORV/OHV
48 trails
Stats
- Avg Trail Rating
- Trails (view details)
- 789
- Trails Mountain Bike
- 531
- Trails E-Bike
- 240
- Trails Horse
- 228
- Trails Hike
- 765
- Trails Trail Running
- 764
- Trails Dirtbike/Moto
- 52
- Trails Observed Trials
- 10
- Trails ATV/ORV/OHV
- 48
- Trails Snowmobile
- 12
- Trails Snowshoe
- 42
- Trails Backcountry Ski
- 26
- Trails Nordic Ski
- 38
- Total Distance
- 958 miles
- Total Descent
- 144,626 ft
- Total Vertical
- 8,630 ft
- Highest Trailhead
- 13,460 ft
- Reports
- 14,556
- Photos
- 1,122
- Ridden Counter
- 165,029
Articles
An Insider’s Guide to the Best Hikes in Boulder, Colorado
Feb 26, 2024 from outsideonline.com
After 25 years of hiking in his hometown of Boulder, guidebook author James Dziezynski reveals his all-time favorite treks in the area. Plus,...
Sub Regions
- Allenspark (13)
- Taylor Mountain (9)
- Boulder (187)
- Gunbarrel (24)
- Jamestown (8)
- Ceran Saint Vrain (12)
- Lafayette (10)
- Longmont (27)
- Louisville (63)
- Davidson Mesa (16)
- Lyons (19)
- Nederland (95)
- Caribou (5)
- Magnolia (59)
- Mud Lake (7)
- Sugarloaf Mountain (1)
- Tolland (9)
- Niwot (7)
- Superior (14)
- Coyote Ridge (8)
- Ward (27)
- Erie Singletrack (15)
- Gold Hill (5)
Popular Boulder County Mountain Biking Trails
| status | title | difficulty | rating |
|---|---|---|---|
| Upper Bitterbrush Hall Ranch | |||
| Nelson Loop Hall Ranch | |||
| Antelope Hall Ranch | |||
| Lower Bitterbrush Hall Ranch | |||
| Loop Link Betasso Preserve | |||
| Benjamin Loop Betasso Preserve | |||
| Springbrook North Marshall Mesa/Doudy Draw/Flatirons Vista | |||
| Springbrook Connector Marshall Mesa/Doudy Draw/Flatirons Vista | |||
| Springbrook South Marshall Mesa/Doudy Draw/Flatirons Vista | |||
| Cowdrey Draw Marshall Mesa/Doudy Draw/Flatirons Vista | |||
| Mayhoffer-Singletree Marshall Mesa/Doudy Draw/Flatirons Vista | |||
| Coal Seam Marshall Mesa/Doudy Draw/Flatirons Vista | |||
| Community Ditch - West Marshall Mesa/Doudy Draw/Flatirons Vista | |||
| Canyon Loop Betasso Preserve | |||
| Picture Rock Heil Valley Ranch |
Boulder County Mountain Bike Routes
| title | rating | distance |
|---|---|---|
| Hall Ranch Technical Side Hall Ranch | 10 miles | |
| Hall Ranch: Intermediate Fun Hall Ranch | 7 miles | |
| Marshall Mesa Doudy Draw Loop Marshall Mesa/Doudy Draw/Flatirons Vista | 12 miles | |
| Buchanan Waterfall out-and-back Brainard Lake and Peaceful Valley | 7 miles | |
| Betasso Loops Betasso Preserve | 7 miles | |
| Coney Buchanan Loop Brainard Lake and Peaceful Valley | 11 miles | |
| Hall Ranch Technical Descent Hall Ranch | 12 miles | |
| Super Betasso via Four Mile Betasso Preserve | 15 miles | |
| South Saint Vrain - Figure 8 Brainard Lake and Peaceful Valley | 16 miles | |
| Waldrop/Snowshoe Loop Brainard Lake and Peaceful Valley | 5 miles |
Photos of Boulder County Mountain Bike
trail: Rattlesnake Gulch
361 |
Mar 9, 2019 @ 7:47am
Mar 9, 2019
trail: Walker Ranch Loop
899 |
Mar 9, 2019 @ 7:37am
Mar 9, 2019
trail: Davidson Mesa
136 |
Mar 9, 2019 @ 5:50am
Mar 9, 2019
trail: Canyon Loop
737 |
Apr 13, 2018 @ 7:40am
Apr 13, 2018
trail: Fourmile Link
452 |
Apr 13, 2018 @ 7:40am
Apr 13, 2018
trail: Mayhoffer-Singletree
598 |
Jun 6, 2017 @ 1:31pm
Jun 6, 2017
trail: Picture Rock
641 |
Feb 27, 2015 @ 11:08am
Feb 27, 2015Videos of Boulder County Mountain Bike
trail: Deadass
64 |
Jan 12, 2024
trail: David Lee Roth
184 |
Nov 8, 2023
trail: Slopestyle
40 |
Nov 8, 2023
trail: Lower Bitterbrush
|
Nov 8, 2023
trail: Lower Bitterbrush
|
Nov 8, 2023
trail: Lefthand Access 2
|
Mar 4, 2023
trail: Lefthand Access 1
|
Mar 3, 2023
trail: Valmont Paved Pumptrack
|
Mar 28, 2022
Current Trail Warnings
| status | trail | date | condition | user | info |
|---|---|---|---|---|---|
| More Ass Lefthand OHV | Dec 8, 2024 @ 7:25am 1 day | Prevalent Mud | thegb1212 | Best to avoid this one so it can dry out. | |
| Walker Ranch Loop Walker Ranch | Dec 2, 2024 @ 7:05pm Dec 2, 2024 | Snow Cover Partial | ktourian | Hike winter conditions | |
| Ethel Harrold Walker Ranch | Dec 2, 2024 @ 7:05pm Dec 2, 2024 | Snow Cover Partial | ktourian | Hike winter conditions |
Recent Trail Reports
| status | trail | date | condition | info | user |
|---|---|---|---|---|---|
| Wapiti Road Heil Valley Ranch | Dec 8, 2024 @ 1:17pm 19 hours | Variable | lojones5 | ||
| Wapiti Heil Valley Ranch | Dec 8, 2024 @ 1:17pm 19 hours | Ideal | lojones5 | ||
| Ponderosa Loop Heil Valley Ranch | Dec 8, 2024 @ 1:13pm 19 hours | Variable | lojones5 | ||
| GZA Lefthand OHV | Dec 7, 2024 @ 8:19pm 1 day | Dry | loganconnell | ||
| Baughman's Gulley #842 Lefthand OHV | Dec 7, 2024 @ 8:17pm 1 day | Dry | loganconnell | ||
| Deadass Lefthand OHV | Dec 7, 2024 @ 8:16pm 1 day | Dry | loganconnell | ||
| Bon Scott Lefthand OHV | Dec 7, 2024 @ 6:45pm 2 days | Variable | hoshealevi | ||
| Left Hand Boulder Valley Ranch / Boulder Reservoir | Dec 5, 2024 @ 2:17pm Dec 5, 2024 | Unknown | WendyBMA BMA | ||
| Lower Bitterbrush Hall Ranch | Dec 5, 2024 @ 2:16pm Dec 5, 2024 | Unknown | WendyBMA BMA | ||
| Upper Bitterbrush Hall Ranch | Dec 5, 2024 @ 2:16pm Dec 5, 2024 | Unknown | WendyBMA BMA |
Activity Feed
| username | action | type | title | date |
|---|---|---|---|---|
| lojones5 | add | report | activity #62873548 and 2 more | Dec 8, 2024 @ 1:13pm 19 hours |
| WendyBMA | update | trail | activity #62867967 | Dec 8, 2024 @ 12:08pm 20 hours |
| JackbikesSantaCruz | add | report | activity #62866703 and 3 more | Dec 8, 2024 @ 11:50am 20 hours |
| thegb1212 | add | report | activity #62850312 | Dec 8, 2024 @ 7:25am 1 day |
| loganconnell | add | report | activity #62832046 and 2 more | Dec 7, 2024 @ 8:16pm 1 day |
Recent Comments
| username | type | title | comment | date |
|---|---|---|---|---|
| trail | this trail suuuuucks | Nov 22, 2024 @ 4:11pm Nov 22, 2024 | ||
| trail | Fun flowy trail that has a way differrent... | Nov 21, 2024 @ 8:46am Nov 21, 2024 | ||
| trail | Was a great trail that is now super rutty and... | Nov 21, 2024 @ 8:37am Nov 21, 2024 | ||
| trail | Personally I would not ride this trail. It’s... | Oct 26, 2024 @ 1:21pm Oct 26, 2024 | ||
| trail | Pretty flowy trail except for the climbs which... | Oct 25, 2024 @ 6:39am Oct 25, 2024 |
Local Badges
-
10 Green Trails1,087 awarded -
10 Blue Trails983 awarded -
10 Blue Trails335 awarded -
10 Black Trails87 awarded -
10 Black Trails28 awarded -
Epic Ride Climb 2k1,048 awarded
Bike & Skill Parks
| name | type | city | rating |
|---|---|---|---|
| Valmont Bike Park | skill park | Boulder | |
| Lyons Bike Park | skill park | Lyons | |
| Velosolutions Pump Track Superior, Colorado | skill park | Superior | |
| Twin Lakes Dirt Jump Park | skill park | Gunbarrel |
Activity Type Stats
| activitytype | trails | distance | descent | descent distance | total vertical | rating | global rank | state rank | photos | reports | routes | ridelogs |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mountain Bike | 531 | 652 miles | 72,418 ft | 280 miles | 6,850 ft | 933 | 14,318 | 79 | 185,271 | |||
| E-Bike | 240 | 361 miles | 24,265 ft | 151 miles | 6,745 ft | 8,312 | 2 | 5,438 | ||||
| Horse | 228 | 329 miles | 54,354 ft | 142 miles | 8,458 ft | 2,950 | 48 | 6 | ||||
| Hike | 765 | 945 miles | 142,795 ft | 412 miles | 8,632 ft | 179 | 13,099 | 74 | 17,860 | |||
| Trail Running | 764 | 939 miles | 142,077 ft | 410 miles | 8,632 ft | 4 | 13,097 | 72 | 19,729 | |||
| Dirtbike/Moto | 52 | 129 miles | 12,871 ft | 51 miles | 4,580 ft | 4 | 2,200 | 1 | 33 | |||
| Observed Trials | 10 | 22 miles | 2,238 ft | 10 miles | 1,788 ft | 2 | 32 | 6 | ||||
| ATV/ORV/OHV | 48 | 126 miles | 11,529 ft | 49 miles | 4,383 ft | 2,199 | 1 | 4 | ||||
| Snowmobile | 12 | 31 miles | 2,533 ft | 8 miles | 2,654 ft | 15 | 1 | 1 | ||||
| Snowshoe | 42 | 83 miles | 8,924 ft | 27 miles | 7,152 ft | 225 | 44 | 238 | ||||
| Backcountry Ski | 26 | 53 miles | 2,894 ft | 10 miles | 4,439 ft | 191 | 1,885 | |||||
| Nordic Ski | 38 | 82 miles | 8,839 ft | 28 miles | 4,692 ft | 224 | 10 | 1,232 |
- By roaming50
& contributors - Admins: jpmcghee, msmcfate, cmcquade, BMA, amrosen, getvert, mpopetz, Pumpntrail, Iowegian
- #15769 - 21,238 views
- boulder county activity log | embed map of Boulder County mountain bike trails | boulder county mountain biking points of interest
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