Boulder Mountainbike Alliance

OUR MISSION:

The Boulder Mountainbike Alliance's mission is to serve as a positive voice for mountain biking in the greater Boulder Colorado area by improving the trail experience for all users through social rides and events, advocacy, and trail building.

Great communities build trails, and great trails build community.

To fullfill this mission, the Boulder Mountainbike Alliance works towards three major goals:

Create a Community of Mountain Bikers: Part of creating sustainable trails is ensuring that there will always be a community around to care for and advocate for those trails. BMA can't do its job without a community of bikers who understand and support our mission. And we build that community around a shared love of trails, then back it up with fun social events and group rides.

Advocate for Trail Access: Originally established in 1991 as the Boulder Offroad Alliance (BOA), Boulder Mountainbike Alliance was formed in response to the closure of nearly every trail in the Boulder area to mountain bikes. This group became the only representative organization for mountain bikers who wanted the right to ride legally in Boulder again.

7.9 mi 12.6 km West Magnolia Tour Intermediate Nederland, CO	Intermediate	Nederland, CO	Minor Issues Update Mostly Dry - Just a few mud puddles but otherwise glorious 12 days ago	89
7.1 mi 11.5 km Betasso Preserve Intermediate Boulder, CO	Intermediate	Boulder, CO	All Clear Update 1 day ago	345
11.8 mi 18.9 km Hall Ranch Difficult Lyons, CO	Difficult	Lyons, CO	Minor Issues Update Muddy 5 days ago	300
13.2 mi 21.2 km West Mag Backcountry Big Ride Intermediate/Difficult Nederland, CO	Intermediate/Difficult	Nederland, CO	Unknown Update	89
7.8 mi 12.6 km Walker Ranch Difficult Coal Creek, CO	Difficult	Coal Creek, CO	Minor Issues Update Some Mud 10 hours ago	285
10.4 mi 16.8 km Marshall Mesa - Doudy Draw Loops Intermediate Superior, CO	Intermediate	Superior, CO	All Clear Update Dry 9 days ago	126
14.6 mi 23.5 km Picture Rock/Wild Turkey Loop Intermediate Lyons, CO	Intermediate	Lyons, CO	Minor Issues Update Dry - Started raining 11 days ago	126
12.6 mi 20.3 km Spring Brook Loop Intermediate Superior, CO	Intermediate	Superior, CO	All Clear Update Dry 9 days ago	131
7.6 mi 12.2 km Heil Ranch Intermediate Lyons, CO	Intermediate	Lyons, CO	All Clear Update Mostly Dry 11 days ago	211
15.7 mi 25.3 km Dirty Bismark Intermediate Superior, CO	Intermediate	Superior, CO	All Clear Update Dry 9 days ago	265
16.2 mi 26.1 km Super Betasso Intermediate/Difficult Boulder, CO	Intermediate/Difficult	Boulder, CO	Minor Issues Update Some Mud 6 days ago	73
16.3 mi 26.2 km South Saint Vrain Figure 8 Difficult Nederland, CO	Difficult	Nederland, CO	Unknown Update	64
10.1 mi 16.3 km Ride like a Moto Difficult Niwot, CO	Difficult	Niwot, CO	Bad / Closed Update Muddy 3 days ago	55
10.2 mi 16.4 km Rhythm & Blues Intermediate/Difficult Nederland, CO	Intermediate/Difficult	Nederland, CO	Minor Issues Update Mostly Dry - Just a few mud puddles but otherwise glorious 12 days ago	31
6.7 mi 10.8 km Post Work Sunset Ride Intermediate Erie, CO	Intermediate	Erie, CO	All Clear Update Dry 58 days ago	44
32.8 mi 52.8 km Heil to Picture to Hall and Back Difficult Lyons, CO	Difficult	Lyons, CO	All Clear Update Some Mud 18 days ago	31
2.0 mi 3.2 km Valmont Bike Park - Singletrack Hotlap Intermediate Boulder, CO	Intermediate	Boulder, CO	All Clear Update Mostly Dry 7 days ago	26
16.9 mi 27.1 km The Whole Casino Difficult Central City, CO	Difficult	Central City, CO	All Clear Update Dry 17 days ago	7
71.4 mi 114.9 km Indian Peaks Traverse (IPT) Difficult Boulder, CO	Difficult	Boulder, CO	Unknown Update	11
13.1 mi 21.0 km The N Bus Loop Intermediate/Difficult Nederland, CO	Intermediate/Difficult	Nederland, CO	Bad / Closed Update Snowy, Fallen Trees - The top of the climb is still full of snow 19 days ago	5
6.2 mi 9.9 km Ceran St. Vrain to Miller Rock Intermediate/Difficult Nederland, CO	Intermediate/Difficult	Nederland, CO	Unknown Update	19
12.2 mi 19.6 km East Boulder Trail Easy/Intermediate Gunbarrel, CO	Easy/Intermediate	Gunbarrel, CO	Unknown Update	15
11.8 mi 18.9 km Rock Creek Farm Loop Easy Broomfield, CO	Easy	Broomfield, CO	All Clear Update 88 days ago	17
11.4 mi 18.4 km Chapman Drive Out-And-Back Easy/Intermediate Boulder, CO	Easy/Intermediate	Boulder, CO	All Clear Update Mostly Dry 23 days ago	13

2.5 mi 4.0 km Bitterbrush - Lower Section Difficult Lyons, CO	Difficult	Lyons, CO	Minor Issues Update Muddy 5 days ago	95
5.3 mi 8.5 km Picture Rock Intermediate Lyons, CO	Intermediate	Lyons, CO	Minor Issues Update Muddy: Mud and puddles in some places, but only a few might affect traction. 5 days ago	124
1.2 mi 1.9 km Betasso Link Trail Difficult Boulder, CO	Difficult	Boulder, CO	All Clear Update 1 day ago	83
2.2 mi 3.6 km Nelson Loop Intermediate Lyons, CO	Intermediate	Lyons, CO	Minor Issues Update Muddy 5 days ago	69
3.3 mi 5.3 km Canyon Loop Intermediate Boulder, CO	Intermediate	Boulder, CO	All Clear Update 1 day ago	64
2.3 mi 3.7 km Benjamin Loop Intermediate Boulder, CO	Intermediate	Boulder, CO	All Clear Update 1 day ago	43
1.4 mi 2.2 km Bitterbrush - Upper Section Intermediate Lyons, CO	Intermediate	Lyons, CO	Minor Issues Update Muddy 5 days ago	47
0.9 mi 1.5 km Antelope Trail Intermediate Lyons, CO	Intermediate	Lyons, CO	Minor Issues Update Muddy 5 days ago	46
2.6 mi 4.1 km Wapiti Trail Intermediate/Difficult Lyons, CO	Intermediate/Difficult	Lyons, CO	Minor Issues Update Some Mud 3 days ago	51
6.0 mi 9.7 km South Saint Vrain Trail (#909) Very Difficult Nederland, CO	Very Difficult	Nederland, CO	Unknown Update	29
1.1 mi 1.8 km Fast Money Intermediate Central City, CO	Intermediate	Central City, CO	All Clear Update 9 days ago	18
3.0 mi 4.8 km Eagle Wind Intermediate Lyons, CO	Intermediate	Lyons, CO	Unknown Update	46
0.7 mi 1.0 km Black Line Difficult Erie, CO	Difficult	Erie, CO	All Clear Update Dry 10 hours ago	26
2.9 mi 4.7 km Wild Turkey Trail Intermediate Lyons, CO	Intermediate	Lyons, CO	All Clear Update Dry 60 days ago	37
0.1 mi 0.2 km Dual Slalom Intermediate/Difficult Boulder, CO	Intermediate/Difficult	Boulder, CO	All Clear Update Mostly Dry 7 days ago	8
5.9 mi 9.5 km South Sourdough (#835) Intermediate/Difficult Nederland, CO	Intermediate/Difficult	Nederland, CO	Minor Issues Update Snowy - Rideable up until descent to Peace Bridge, many snow drifts after that 10 days ago	34
2.7 mi 4.3 km Ponderosa Loop Intermediate Lyons, CO	Intermediate	Lyons, CO	Minor Issues Update Some Mud 3 days ago	38
0.1 mi 0.2 km XL Slopestyle Very Difficult Boulder, CO	Very Difficult	Boulder, CO	Unknown Update	6
3.2 mi 5.2 km School Bus #929 Intermediate Nederland, CO	Intermediate	Nederland, CO	Unknown Update	23
0.1 mi 0.2 km Corkscrew Intermediate/Difficult Boulder, CO	Intermediate/Difficult	Boulder, CO	All Clear Update Mostly Dry 7 days ago	11
0.1 mi 0.2 km Large Slopestyle Difficult Boulder, CO	Difficult	Boulder, CO	All Clear Update Dry 40 days ago	8
0.4 mi 0.6 km Skills Loop Easy/Intermediate Lyons, CO	Easy/Intermediate	Lyons, CO	All Clear Update Mostly Dry, Some Mud 3 days ago	3
2.2 mi 3.5 km Doudy Draw Intermediate Superior, CO	Intermediate	Superior, CO	All Clear Update Dry 9 days ago	34
0.3 mi 0.5 km Short Stack Intermediate Nederland, CO	Intermediate	Nederland, CO	Minor Issues Update Mostly Dry - Just a few mud puddles but otherwise glorious 12 days ago	2
0.5 mi 0.9 km Lower Fast Money Intermediate/Difficult Central City, CO	Intermediate/Difficult	Central City, CO	All Clear Update Dry 17 days ago	1
0.1 mi 0.1 km Medium Slopestyle Intermediate/Difficult Boulder, CO	Intermediate/Difficult	Boulder, CO	All Clear Update Mostly Dry 7 days ago	5
2.3 mi 3.7 km Spring Brook Loop North Intermediate Boulder, CO	Intermediate	Boulder, CO	All Clear Update Mostly Dry, Some Mud 15 days ago	29
0.8 mi 1.3 km Schoolhouse Loop Easy Lyons, CO	Easy	Lyons, CO	All Clear Update Mostly Dry, Some Mud 3 days ago	10
1.5 mi 2.4 km Aspen Alley Trail #342A Intermediate Nederland, CO	Intermediate	Nederland, CO	Minor Issues Update Mostly Dry - Just a few mud puddles but otherwise glorious 12 days ago	17
0.8 mi 1.3 km Fourmile Link Intermediate Boulder, CO	Intermediate	Boulder, CO	All Clear Update 34 days ago	22
0.6 mi 1.0 km The Glades - Outer Loop Intermediate Boulder, CO	Intermediate	Boulder, CO	All Clear Update Mostly Dry 7 days ago	8
0.1 mi 0.2 km Small Slopestyle Intermediate Boulder, CO	Intermediate	Boulder, CO	All Clear Update Mostly Dry 7 days ago	5
0.7 mi 1.1 km Blue Trail Intermediate Erie, CO	Intermediate	Erie, CO	All Clear Update Dry 10 hours ago	22
4.2 mi 6.8 km Hobbit Intermediate Nederland, CO	Intermediate	Nederland, CO	Minor Issues Update Mostly Dry 8 days ago	8
1.8 mi 2.9 km Re-Root #927 Intermediate/Difficult Nederland, CO	Intermediate/Difficult	Nederland, CO	Minor Issues Update Mostly Dry 8 days ago	17
0.7 mi 1.2 km Green Trail Easy/Intermediate Erie, CO	Easy/Intermediate	Erie, CO	All Clear Update Dry 10 hours ago	19
1.1 mi 1.8 km Spring Brook Loop South Intermediate Boulder, CO	Intermediate	Boulder, CO	All Clear Update Mostly Dry, Some Mud 15 days ago	27
1.9 mi 3.1 km Ceran Saint Vrain #801 Intermediate/Difficult Nederland, CO	Intermediate/Difficult	Nederland, CO	Unknown Update	8
0.3 mi 0.5 km Dirt 101 Intermediate Boulder, CO	Intermediate	Boulder, CO	All Clear Update Mostly Dry 7 days ago	4
12.4 mi 20.0 km Coal Creek Trail Easy/Intermediate Superior, CO	Easy/Intermediate	Superior, CO	Minor Issues Update Dry 5 days ago	17
1.7 mi 2.8 km Little Raven Trail Difficult Nederland, CO	Difficult	Nederland, CO	Unknown Update	11
0.9 mi 1.5 km Sugar Magnolia #926 Difficult Nederland, CO	Difficult	Nederland, CO	Unknown Update	14
0.6 mi 0.9 km Coal Seam Intermediate Superior, CO	Intermediate	Superior, CO	All Clear Update Dry 9 days ago	10
0.9 mi 1.4 km Marshall Valley Intermediate Superior, CO	Intermediate	Superior, CO	Minor Issues Update Some Mud 1 day ago	15
0.4 mi 0.6 km Hotlap Easy Boulder, CO	Easy	Boulder, CO	All Clear Update Mostly Dry, Some Mud 18 days ago	3
0.1 mi 0.2 km Espresso Easy/Intermediate Boulder, CO	Easy/Intermediate	Boulder, CO	Unknown Update	3
2.1 mi 3.4 km Flatirons Vista South Easy/Intermediate Superior, CO	Easy/Intermediate	Superior, CO	All Clear Update 58 days ago	25
2.9 mi 4.7 km Left Hand Easy/Intermediate Niwot, CO	Easy/Intermediate	Niwot, CO	Unknown Update	14
1.0 mi 1.7 km Josie Heath Trail Intermediate Coal Creek, CO	Intermediate	Coal Creek, CO	Unknown Update	7
2.7 mi 4.4 km High Plains Easy/Intermediate Superior, CO	Easy/Intermediate	Superior, CO	All Clear Update Dry 10 days ago	16
0.4 mi 0.6 km Hobbit 3 #927 Intermediate Nederland, CO	Intermediate	Nederland, CO	Unknown Update	11
2.1 mi 3.3 km Interim Joder Trail Intermediate Niwot, CO	Intermediate	Niwot, CO	All Clear Update Dry 36 days ago	18
1.0 mi 1.6 km Observatory Trail #355 Intermediate Nederland, CO	Intermediate	Nederland, CO	Minor Issues Update Mostly Dry, Some Mud 10 days ago	3
2.6 mi 4.2 km Meyers Homestead Trail Easy/Intermediate Coal Creek, CO	Easy/Intermediate	Coal Creek, CO	Unknown Update	13
3.7 mi 6.0 km Community Ditch Easy/Intermediate Superior, CO	Easy/Intermediate	Superior, CO	All Clear Update Dry 9 days ago	22
0.2 mi 0.3 km Skillz Loop Easy Boulder, CO	Easy	Boulder, CO	All Clear Update Mostly Dry 7 days ago	4
2.6 mi 4.2 km Winiger Ridge Trail Intermediate/Difficult Coal Creek, CO	Intermediate/Difficult	Coal Creek, CO	Unknown Update	6
2.1 mi 3.3 km East Boulder Trail - White Rocks Section Easy/Intermediate Gunbarrel, CO	Easy/Intermediate	Gunbarrel, CO	Unknown Update	5
1.1 mi 1.7 km Reboot Intermediate/Difficult Nederland, CO	Intermediate/Difficult	Nederland, CO	Unknown Update	5
2.3 mi 3.7 km Wapiti Trail Difficult Nederland, CO	Difficult	Nederland, CO	Unknown Update	6
0.8 mi 1.3 km Whoop-Di-Doos Intermediate/Difficult Nederland, CO	Intermediate/Difficult	Nederland, CO	Bad / Closed Update Snowy 40 days ago	6
2.5 mi 4.0 km Foothills Easy/Intermediate Boulder, CO	Easy/Intermediate	Boulder, CO	All Clear Update 63 days ago	10
0.7 mi 1.1 km Boot Intermediate Nederland, CO	Intermediate	Nederland, CO	Unknown Update	2
3.0 mi 4.8 km Mayhoffer Singletree Easy Superior, CO	Easy	Superior, CO	All Clear Update Dry 52 days ago	13
8.9 mi 14.3 km Boulder Creek Path Easy Boulder, CO	Easy	Boulder, CO	All Clear Update 8 days ago	14
2.6 mi 4.2 km Chapman Drive Easy/Intermediate Boulder, CO	Easy/Intermediate	Boulder, CO	All Clear Update 34 days ago	10
2.9 mi 4.6 km Blue Dot Trail (#606.1) Intermediate/Difficult Nederland, CO	Intermediate/Difficult	Nederland, CO	Unknown Update	7
0.6 mi 0.9 km Lookout Trail #926 Intermediate/Difficult Nederland, CO	Intermediate/Difficult	Nederland, CO	Minor Issues Update Mostly Dry - Just a few mud puddles but otherwise glorious 12 days ago	11
0.5 mi 0.9 km Sunset Ridge Intermediate Erie, CO	Intermediate	Erie, CO	All Clear Update Dry 62 days ago	9
8.8 mi 14.2 km Lake Link Trail Easy/Intermediate Broomfield, CO	Easy/Intermediate	Broomfield, CO	All Clear Update 88 days ago	7
3.2 mi 5.1 km Eagle Easy/Intermediate Gunbarrel, CO	Easy/Intermediate	Gunbarrel, CO	Minor Issues Update Some Mud 54 days ago	12
1.1 mi 1.8 km Prairie Vista Easy Superior, CO	Easy	Superior, CO	All Clear Update 58 days ago	12
2.3 mi 3.8 km Meadowlark Easy/Intermediate Superior, CO	Easy/Intermediate	Superior, CO	Minor Issues Update Dry 5 days ago	9
1.4 mi 2.3 km Greenbelt Plateau Easy/Intermediate Superior, CO	Easy/Intermediate	Superior, CO	All Clear Update Dry 10 days ago	16
2.3 mi 3.6 km Waldrop Trail Difficult Nederland, CO	Difficult	Nederland, CO	Unknown Update	9
0.5 mi 0.7 km Erie Forest Easy/Intermediate Erie, CO	Easy/Intermediate	Erie, CO	All Clear Update Dry 58 days ago	10
1.2 mi 1.9 km Flatirons Vista North Easy/Intermediate Superior, CO	Easy/Intermediate	Superior, CO	Minor Issues Update Mostly Dry 2 days ago	11
3.6 mi 5.7 km Boulder Reservoir Easy Gunbarrel, CO	Easy	Gunbarrel, CO	All Clear Update Dry 79 days ago	3
0.9 mi 1.4 km Tungsten Loop Easy/Intermediate Nederland, CO	Easy/Intermediate	Nederland, CO	Unknown Update	3
1.2 mi 1.9 km Kinnickinnick Loop Easy/Intermediate Nederland, CO	Easy/Intermediate	Nederland, CO	Unknown Update	3
2.1 mi 3.3 km CU South Campus Easy Boulder, CO	Easy	Boulder, CO	All Clear Update 22 days ago	2
3.7 mi 6.0 km Niwot Loop - Lower Section Easy Niwot, CO	Easy	Niwot, CO	All Clear Update 58 days ago	2
0.9 mi 1.5 km Little Thompson Overlook Intermediate/Difficult Lyons, CO	Intermediate/Difficult	Lyons, CO	Unknown Update	10
1.5 mi 2.4 km 355.1D Easy Nederland, CO	Easy	Nederland, CO	Unknown Update	2
2.8 mi 4.5 km Coalton Easy/Intermediate Superior, CO	Easy/Intermediate	Superior, CO	Minor Issues Update Dry 5 days ago	15
1.9 mi 3.0 km Sage Easy Gunbarrel, CO	Easy	Gunbarrel, CO	Bad / Closed Update Closed 22 days ago	7
3.3 mi 5.3 km Rock Creek Trail Easy Lafayette, CO	Easy	Lafayette, CO	All Clear Update Dry 40 days ago	1
2.3 mi 3.6 km Niwot Loop - Niwot High School Trail Easy Niwot, CO	Easy	Niwot, CO	Unknown Update	1
2.5 mi 4.1 km Niwot Loop - Upper Section Easy Niwot, CO	Easy	Niwot, CO	Unknown Update	1
0.8 mi 1.3 km Cowdrey Draw Easy/Intermediate Superior, CO	Easy/Intermediate	Superior, CO	All Clear Update Dry 9 days ago	8
0.6 mi 1.0 km Quartz Valley Trail Easy Central City, CO	Easy	Central City, CO	All Clear Update 9 days ago	5
3.4 mi 5.4 km South Boulder Creek Trail Easy Boulder, CO	Easy	Boulder, CO	All Clear Update 22 days ago	3
0.8 mi 1.3 km Yellow Dot Trail (#357.2A) Intermediate/Difficult Nederland, CO	Intermediate/Difficult	Nederland, CO	Unknown Update	4
3.1 mi 4.9 km Davidson Mesa Loop Easy Louisville, CO	Easy	Louisville, CO	All Clear Update 39 days ago	5
0.6 mi 1.0 km Little Raven East Difficult Nederland, CO	Difficult	Nederland, CO	Unknown Update	5
1.9 mi 3.1 km Cottontail Trail - Gunbarrel Section Easy Gunbarrel, CO	Easy	Gunbarrel, CO	All Clear Update 58 days ago	2
2.2 mi 3.5 km East Boulder Trail - Gunbarrel Farm Section Easy/Intermediate Gunbarrel, CO	Easy/Intermediate	Gunbarrel, CO	All Clear Update Dry 31 days ago	2
1.3 mi 2.0 km Cottontail Trail Easy Gunbarrel, CO	Easy	Gunbarrel, CO	Unknown Update	2
0.9 mi 1.5 km Rock Creek Trail Easy/Intermediate Broomfield, CO	Easy/Intermediate	Broomfield, CO	All Clear Update 38 days ago	4
1.2 mi 2.0 km Dots Access Road Intermediate Nederland, CO	Intermediate	Nederland, CO	Unknown Update	4
0.8 mi 1.3 km Red Dot Trail (#357.2B) Intermediate/Difficult Nederland, CO	Intermediate/Difficult	Nederland, CO	Unknown Update	4
7.3 mi 11.7 km LoBo Trail Easy Longmont, CO	Easy	Longmont, CO	All Clear Update Dry 16 days ago	3
2.0 mi 3.2 km North Sheep Mountain Trail Very Difficult Lyons, CO	Very Difficult	Lyons, CO	Unknown Update	2
2.4 mi 3.8 km 355.1 Easy/Intermediate Nederland, CO	Easy/Intermediate	Nederland, CO	Unknown Update	2
1.6 mi 2.6 km Mary Miller Trail Easy Broomfield, CO	Easy	Broomfield, CO	All Clear Update Dry 67 days ago	2
1.1 mi 1.7 km Twin Lakes Regional Trail Easy Gunbarrel, CO	Easy	Gunbarrel, CO	Unknown Update	2
2.1 mi 3.4 km East Boulder Trail - Teller Farm Section Easy Gunbarrel, CO	Easy	Gunbarrel, CO	Unknown Update	1
2.0 mi 3.2 km Cottonwood Trail Easy Gunbarrel, CO	Easy	Gunbarrel, CO	Unknown Update	1
1.5 mi 2.5 km CR 132 West Easy Nederland, CO	Easy	Nederland, CO	Unknown Update	1
1.3 mi 2.1 km Twin Lakes Loops Easy Gunbarrel, CO	Easy	Gunbarrel, CO	Unknown Update	4
1.7 mi 2.7 km Indian Mesa Easy Lyons, CO	Easy	Lyons, CO	Unknown Update	5
1.6 mi 2.5 km North Rim Easy/Intermediate Boulder, CO	Easy/Intermediate	Boulder, CO	Minor Issues Update Some Mud 26 days ago	4
0.9 mi 1.5 km 355.1C Easy Nederland, CO	Easy	Nederland, CO	Unknown Update	1
0.4 mi 0.7 km 355.1A Easy Nederland, CO	Easy	Nederland, CO	Unknown Update	1

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Recommended Routes: 24

Trails: 114