Popular Riding Areas

title
Magnolia	6	15	11
Marshall Mesa	15
Valmont Bike Park	5	10		2
Boulder Open Space	4	7	3
Lefthand OHV	1	2	4	4

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Region Details

Caution on 10 hours

Local Trail Association

BMA (bouldermountainbike.org)

NATO (nederlandareatrails.org)

Donate Trail Karma

Stats

Avg Trail Rating

Trails (view details)

198

Trails Mountain Bike

198

Trails E-Bike

Trails Hike

198

Trails Trail Running

198

Trails Dirtbike

Trails ATV

Total Distance

325 miles

Total Descent Distance

130 miles

Total Descent

39,979 ft

Total Vertical

6,678 ft

Highest Trailhead

11,682 ft

Reports

868

Photos

266

Ridden Counter

10,123

Sub Regions

Boulder (87)
- Boulder Open Space (18)
- Boulder Reservoir (1)
- Boulder Valley Ranch (3)
- Doudy Draw (0)
- Foothills Community Park (4)
- Lefthand OHV (14)
- Marshall Mesa (27)
- Valmont Bike Park (19)
Longmont (15)
- Lagerman Agricultural Preserve (3)
- McIntosh Park (1)
Louisville (1)
Lyons (22)
- Hall Ranch (5)
- Heil Valley Ranch (10)
- Rabbit Mountain Open Space (5)
Nederland (41)
- Magnolia (34)
- Mud Lake (6)
Ward (19)
Betasso (8)

Popular Boulder County Mountain Biking Trails

status	title	region	difficulty	rating
	Upper Bitterbrush	Hall Ranch
	Nelson Loop	Hall Ranch
	Lower Bitterbrush	Hall Ranch
	Antelope	Hall Ranch
	Wapiti	Heil Valley Ranch
	Canyon Loop	Betasso
	Benjamin Loop	Betasso
	Loop Link	Betasso
	Picture Rock	Heil Valley Ranch
	Wild Turkey Loop	Heil Valley Ranch
	Betasso Connect	Betasso
	Greenbelt Plateau (North Trail)	Marshall Mesa

view all trails »

Recent Trail Reports

trail	region	date
Saddle East (842)	Lefthand OHV	Dec 15, 2018 @ 12:12am 10 hours
Nelson Loop	Hall Ranch	Dec 14, 2018 @ 12:57pm 21 hours
Rollins Pass to Rogers Pass	Nederland	Dec 9, 2018 @ 5:02pm Dec 9, 2018
Coney Creek Road	Ward	Dec 3, 2018 @ 12:34pm Dec 3, 2018
Beaver Reservoir Cutoff Trail	Ward	Dec 3, 2018 @ 12:34pm Dec 3, 2018

more reports »

Current Trail Warnings

trail	region	date
Lefthand Main (286)	Lefthand OHV	Nov 22, 2018 @ 10:47am Nov 22, 2018
Fireman Hill (286D)	Lefthand OHV	Nov 22, 2018 @ 10:47am Nov 22, 2018
Saddle West (841)	Lefthand OHV	Nov 22, 2018 @ 10:47am Nov 22, 2018

Photos of Boulder County Mountain Bike

trail: South St Vrain (909)

181 |

Dec 13, 2018 @ 11:57am

2 days

South St Vrain (909)

trail: Antelope

4 |

Nov 29, 2018 @ 5:43pm

Nov 29, 2018

Antelope, Lyons

trail: West Magnolia Winter Fat Bike Groomed Loop

2 |

Nov 28, 2018 @ 3:30pm

Nov 28, 2018

West Magnolia Winter Fat Bike...

trail: Canyon Loop

71 |

Apr 13, 2018 @ 7:40am

Apr 13, 2018

Canyon Loop, Boulder

more photos »

Videos of Boulder County Mountain Bike

Boulder County Mountain Bike Routes

title	rating	distance
Dirty Bismark		15 miles
Hall Ranch Technical Descent		12 miles
Walker Ranch counter clockwise		8 miles
Heil Ranch, frontside		8 miles

Recent Comments

username	type	title	comment	date
fattyheadshok	trail	Re-root	I’m not a local by any stretch. However I...	Oct 30, 2018 @ 8:09pm Oct 30, 2018
mirahladik	report	Pipe Trail	ltttqdpxwsxl p pjbmpad beqd	Jul 31, 2018 @ 8:36am Jul 31, 2018
tshralper	trail	Canyon Loop	This trail is closed to mountain bikes on...	Jul 7, 2018 @ 8:37pm Jul 7, 2018
tshralper	trail	Benjamin Loop	This trail is closed to mountain bikes on...	Jul 7, 2018 @ 8:36pm Jul 7, 2018
Ethanrmtb	trail	Dual Slalom	Should be rated blue	Jun 16, 2018 @ 12:50pm Jun 16, 2018

username	action	type	title	date
DRMTB51	add	ridelog	Dec 15, 2018 ride log	Dec 15, 2018 @ 9:52am 23 mins
JakeMartell	difficultyvote	trail	Saddle East (842) and 1 more	Dec 15, 2018 @ 12:13am 10 hours
JakeMartell	add	report	Saddle East (842)	Dec 15, 2018 @ 12:12am 10 hours
JakeMartell	vote	trail	Saddle East (842)	Dec 15, 2018 @ 12:12am 10 hours
kind0fimportant	add	ridelog	Dec 14, 2018 ride log	Dec 14, 2018 @ 6:35pm 16 hours

Bike & Skill Parks

name	type	city	rating
Lyons Bike Park	skill park	Lyons
Valmont Bike Park	skill park	Boulder

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Local Mountain Bike Directory

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Local Trail Supporters

NATO