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Best Bike Trails and Rides in Boulder County

Our beautiful city boasts ample amount of open space that encourages residents to embrace the great outdoors. Whether you’re an avid mountain biker or enjoy weekend cruises around town, Boulder County has a flowy trail or gentle bike path for you. Here are some of our favorites. 

LoBo Trail

This winding trail leads riders from Boulder to Longmont through Gunbarrel and Niwot. This 12 miles consists of gentle, gravel paths that link these four unique Boulder County towns. For a full day ride, start at Cottonwood Trailhead, just south of Jay Road. Grab lunch in downtown Niwot at one of its charming diners or restaurants, then continue on to Longmont. Take in stunning views of the Rockies and Flatirons on the return ride back to Boulder. 

Nelson Loop

Start by heading north on US 36 then east on Nelson Road. This route begins a bit busy but quickly turns down wide, meandering farm roads. Experience some of Boulder County’s majestic acreage and historic agricultural properties from the convenience of your bike. At 22 miles, this can be a great all day ride for beginning cyclists or a quick, evening jaunt for seasoned athletes. Head south on 63rd then close the loop via Niwot Road. 

Twin Lakes Trails

Situated in Gunbarrel, just east of Boulder, lies this gentle pathway around beautiful lakes. Spring and summer offer perfect riding weather, so start at Spine Road and head east toward the lakes. Pack a picnic and hang out near the water’s edge to spy all sorts of abundant wildlife. This path is great for family rides or gentle day endeavors without any hassle and fuss. 

Mud Lake

For cooler riding weather and beginning mountain bikers, head up to Mud Lake, outside of Nederland. There are a number of trails that wind around the lake, and this open area is fantastic for large groups of cyclists of all levels. The loops range in distance, difficulty, and obstacles, but allow each rider to choose their own adventure. At 9,000 feet, even the easiest of days up here will be a work out. 

Heil Valley Ranch

This ever-popular mountain biking area in North Boulder has a dedicated following for good reason. Heil Ranch offers numerous trails at various ratings and distances. Beginner and advanced mountain bikers will find fun, adventure, and challenge throughout this rocky trail system. As the days grow longer, Heil Ranch fills up with biking enthusiasts looking for the next thrill. 

Betasso Preserve 

This trail attracts Boulder mountain bikers for its convenient access from downtown. Jet up Boulder Canyon, then climb the steep connector to ride Betasso Preserve. The 7.4 mile loop offers a perfect after-work ride with friends, or can be repeated for a longer, tiresome journey that certainly earns riders a juicy IPA or two afterwards. The trail fills up in the summertime, but is also a great place to meet fellow mountain bikers, make friends, and swap tips. 

Athletes of all skill levels move to Boulder for its outdoor access and unmatched terrain. Mountain bikers, road cyclists, and weekend warriors can find all the trails they want in and around Boulder County. There’s never a shortage of biking in our fantastic Front Range community. 

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