The best running trails in Boulder County
4.4
(45)
11,488 people ran here
Running in Boulder County is one of the best ways to explore more of this region. To help you discover the most beautiful places to run, we’ve reviewed our full collection of routes in Boulder County—and are proud to present the best running trails. Click on any of the routes for more details and browse real tips and photos uploaded by other runners.
Expert 01:45 10.9km | |
Intermediate 00:57 8.50km | |
Expert 01:39 10.7km | |
Expert 01:43 12.6km | |
Expert 01:06 6.33km | |
Expert 02:21 19.7km | |
Intermediate 00:37 5.97km | |
Expert 02:35 24.4km | |
Expert 02:41 17.7km |
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- 1
01:45
10.9km
9:35/km
480m
480m
Expert240
Expert run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required. - 2
00:57
8.50km
6:45/km
30m
30m
Intermediate148
Intermediate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. 
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01:39
10.7km
9:13/km
430m
430m
Expert135
Expert run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required. - 4
01:43
12.6km
8:14/km
420m
430m
Expert5.0
(3)
115
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. - 5
01:06
6.33km
10:25/km
420m
420m
Expert111
Expert run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required. - 6
02:21
19.7km
7:11/km
330m
330m
Expert93
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. - 7
00:37
5.97km
6:10/km
10m
10m
Intermediate82
Intermediate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. - 8
02:35
24.4km
6:21/km
280m
280m
Expert3.0
(1)
74
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. - 9
02:41
17.7km
9:08/km
850m
850m
Expert4.0
(1)
68
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
03:40
22.5km
9:48/km
960m
960m
56
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Explore the most popular routes in Boulder County
Discover the most popular attractions in Boulder County
Didn’t find what you were looking for? Check out more Running Trails & Routes throughout Boulder County below and find the perfect route in your destination.
- Niwot
- Eldora
- Seven Hills
- Eldorado Springs
- Allenspark
- Gold Hill
- Bark Ranch
- Sunshine
- Crisman
- Nederland
- Mountain Meadows
- Paragon Estates
- Indian Peaks Wilderness
- Longmont
- Tall Timber
- Sugarloaf
- Walker Ranch Park
- St. Ann Highlands
- Lazy Acres
- Louisville
- Ward
- Eldorado Canyon State Park
- Jamestown
- Hidden Lake
- Gunbarrel
- Lafayette
- Valmont
- Superior
- Bonanza Mountain Estates
- Pine Brook Hill
- Lyons
- Boulder
- Glendale
- Leyner
- Altona
- Rabbit Mountain Open Space
Explore more of Colorado: Browse the best Running Trails & Routes in other regions.
- Front Range
- Jefferson County
- El Paso County
- Pike And San Isabel National Forests
- Arapaho And Roosevelt National Forests
- Lake County
- White River National Forest
- Clear Creek County
- Sawatch Range
- Douglas County
- Summit County
- San Juan Mountains
- La Plata County
- Chaffee County
- Pitkin County
- Mesa County
- Grand Mesa, Uncompahgre And Gunnison National Forests
- San Juan National Forest
- Gunnison County
- Grand County
- San Juan County
- Garfield County
- Park County
- Flat Tops
- San Miguel County
- Pueblo County
- Saguache County
- Custer County
- Medicine Bow Mountains
- Hinsdale County
- Teller County
- Rio Grande National Forest
- Rio Blanco County
- Larimer County
- Jackson County
- Eagle County
- Ouray County
- Weld County
- Mineral County
- Gilpin County
- Adams County
- Dolores County
- Denver County
- Montezuma County
- Fremont County
- Routt County
- Archuleta County
- Arapahoe County
- Elbert County
- Delta County
- Broomfield County
- Broomfield
- Montrose County