116 Trails in Boulder County, Colorado
| Rank | Trail Name | Difficulty | Length (mi) | Rating | City |
|---|---|---|---|---|---|
| 1. | Apex Park | Advanced | 8 |   |
Golden |
| 2. | Heil Valley Ranch | Intermediate | 14.0 |  |
Boulder |
| 3. | Trestle Bike Park | Advanced | 25.0 | |
Fraser |
| 4. | Red Rocks / Dakota Ridge | Advanced | 6.0 | |
Denver |
| 5. | Valmont Bike Park | Intermediate | 6.0 | |
Boulder |
| 6. | White Ranch | Advanced | 14.0 | |
Golden |
| 7. | North Table Mountain | Intermediate | 10.0 | |
Golden |
| 8. | Bobcat Ridge | Intermediate | 4.0 | |
Masonville |
| 9. | Tipperary Creek Loop | Intermediate | 20.0 | |
Fraser |
| 10. | Hall Ranch | Advanced | 9.0 | |
Lyons |
| 11. | Idlewild Trail System | Advanced | 10 | |
Winter Park |
| 12. | Centennial Cone Park | Intermediate | 13.0 | |
Idaho Springs |
| 13. | Betasso Preserve | Intermediate | 7.0 | |
Boulder |
| 14. | Granby Ranch Bike Park | Advanced | 20.0 | |
Granby |
| 15. | Sunset East | Beginner | 1.0 | |
Erie |
| 16. | Walker Ranch | Advanced | 7.0 | |
Boulder |
| 17. | Chimney Gulch | Advanced | 10.0 | |
Golden |
| 18. | Horsetooth Mountain Park | Advanced | 30 | |
Fort Collins |
| 19. | Creekside / Flume Loop | Intermediate | 5.0 | |
Fraser |
| 20. | Golden Gate Canyon State Park | Advanced | 35.0 | |
Golden |
| 21. | Blue Sky | Intermediate | 15.0 | |
Fort Collins |
| 22. | Devil's Backbone | Intermediate | 8 | |
Loveland |
| 23. | Sourdough Trail | Intermediate | 12.0 | |
Ward |
| 24. | Sunset West | Advanced | 3 | |
Erie |
| 25. | Green World (Trestle Bike Park) | Intermediate | 7.0 | |
Winter Park |
| 26. | Marshall Mesa Area | Beginner | 16.0 | |
Boulder |
| 27. | Crosier Mountain | Expert | 10.0 | |
Drake |
| 28. | Picture Rock Trail (Heil Valley Ranch) | Intermediate | 11.0 | |
Lyons |
| 29. | Coyote Ridge | Intermediate | 7.0 | |
Fort Collins |
| 30. | Pole Hill | Intermediate | 6.0 | |
Estes Park |
| 31. | Maryland Mountain | Advanced | 12 | |
Black Hawk |
| 32. | Wapiti Trail (Heil Valley Ranch) | Intermediate | 5.0 | |
Boulder |
| 33. | Buchanan Pass | Advanced | 10.0 | |
Ward |
| 34. | Virginia Canyon | Expert | 11.0 | |
Idaho Springs |
| 35. | South Saint Vrain | Advanced | 10.0 | |
Ward |
| 36. | West Magnolia | Intermediate | 9.0 | |
Nederland |
| 37. | Floyd Hill Open Space | Intermediate | 6 | |
Evergreen |
| 38. | Stillwater Pass | 110.0 | |
Grand Lake | |
| 39. | Rabbit Mountain Loop | Intermediate | 5.0 | |
Lyons |
| 40. | Dirty Bismarck | Easiest | 10.0 | |
Superior |
| 41. | Kruger Rock / Limber Pine Loop | Advanced | 6.0 | |
Estes Park |
| 42. | Strawberry / Doe Creek | Advanced | 22.0 | |
Winter Park |
| 43. | Standley Lake | Beginner | 5.0 | |
Westminster |
| 44. | Mountain Lion Trail (Golden Gate Canyon State Park) | Advanced | 8.0 | |
Black Hawk |
| 45. | Chapman Drive | Intermediate | 3.0 | |
Boulder |
| 46. | Lion Gulch | Advanced | 6.0 | |
Pinewood Springs |
| 47. | Doudy Draw Trail | Beginner | 4.0 | |
Eldorado Springs |
| 48. | Flatirons Vista | Beginner | 4.0 | |
Boulder |
| 49. | Northwest Passage / Tipperary / Spruce Creek / Flume | Intermediate | 15.0 | |
Fraser |
| 50. | South Table Mountain | Beginner | 8.0 | |
Golden |
Know of a new mountain bike trail not listed here? Please tell us about it using this form. Find mountain bike trails near you or for even more trail inspiration and how we ranked the mountain bike trails, see this list of the best mountain bike trails in the world.
