4.6
(39)
2,151
riders
85
rides
Mountain bike trails around Eldorado Springs, Colorado, are set against a backdrop of dramatic sandstone cliffs and winding creeks. The region features varied terrain, from challenging climbs with views of the Continental Divide to more moderate paths through open spaces. Riders can explore routes within Eldorado Canyon State Park or venture into the wider network of trails in the surrounding Boulder area. The landscape offers a mix of technical sections and scenic paths.
Last updated: June 23, 2026
4.8
(6)
231
riders
29.0km
02:35
330m
330m
Marshall Mesa Loop offers a diverse mountain biking experience, blending cruisy gravel roads with challenging singletrack sections. You will encounter rocky climbs and areas with scattered medium-sized rocks, keeping your ride engaging. The route also features twisty, wooded areas perfect for honing your cornering skills, alongside flat and fast stretches. As you ride, keep an eye out for the iconic Flatirons and expansive views of the plains, which provide a stunning backdrop. This moderate 18.0-mile (29.0 km) trail involves gaining 1080 feet (329 metres) in elevation, typically taking about 2 hours and 35 minutes to complete.
Planning your mountain biking trip to Marshall Mesa Loop is straightforward, as the trail is conveniently located very close to Boulder, making it easily accessible for a quick ride. It is important to be aware that the trails can become muddy after rain or snow. If you encounter mud, please ride directly through it to help preserve the surrounding vegetation and prevent trail widening. Consider checking local conditions before you head out to ensure the best possible riding experience.
This trail is a popular choice within the Boulder Open Space and Mountain Parks system, known for its versatile experience suitable for various skill levels. The mix of terrain, from fast flats to technical climbs, makes it a dynamic route that stands out in the region. It provides an excellent opportunity to experience the unique landscape of the area, offering both a physical challenge and scenic rewards.
4.3
(4)
174
riders
22.0km
02:03
310m
310m
This moderate 13.7-mile mountain biking loop near Boulder offers diverse terrain, iconic Flatirons views, and wooded sections.

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5.0
(1)
31
riders
6.94km
00:37
70m
70m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
5.0
(1)
28
riders
6.24km
00:34
70m
70m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
23
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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The Spring Brook Loop is a great introduction to mountain biking in Colorado’s Front Range, offering a mix of technical challenges and awesome views. The trail features a series of rocky step-ups, rolling singletrack, and winding paths through forests. The ride is mostly sun-exposed, so pacing water is important, and the trail is shared and popular with hikers, runners, and other bikers. Highlights include the descent through Doudy Draw and the twisty, wooded sections of the Spring Brook Loop. The trail loops back, offering expansive views of the Flatirons before returning to the starting point.
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The Greenbelt Plateau Trail starts at a trailhead off Highway 93 and Highway 128 and offers an easy singletrack ride perfect for novice riders. It connects with the Greenbelt Connector, allowing riders to access the western part of the Marshall Mesa trail system. On the northern end, the trail splits; staying west leads to the Community Ditch Trail near Highway 93. This section is also a safe route north without having to ride along the busy Highway 93.
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The Community Ditch Trail is an easy mountain biking route that serves as a connector to the Marshall Mesa trails. While not particularly thrilling to ride, it offers beautiful views of the Flatirons and golden open fields. The trail effectively connects the east and west sections of trails across Highway 93, making it useful, scenic, and straightforward.
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Really an old dirt road, this trail makes a great connector between the other trails in the area of Marshall Lake. Watch out for fast-moving mountain bikers!
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The road up Flagstaff from Chautauqua to Chapman Drive, where you can continue to Artists Point overlooking Boulder, is an iconic Boulder climb. This fun, twisting road (whether you ride up or down) grants you great views over the city as you pass by large sandstone boulders and cliffs, stands of pine trees, and several viewpoints. Watch out for cars on both the ascent and descent, this is a very popular drive for tourists and locals alike and there are several well-trafficked hiking trails off of the road.
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This is a fire access road that is gated at both the top and bottom. Only cyclists and hikers permitted. E-bikes are permitted. Includes some beautiful views across Boulder Canyon. Lots of shade. This is a great way to get to the top of Flagstaff without battling cars and narrow shoulders on Flagstaff Drive. I like to go to the top of Flagstaff via Boulder Canyon Trail and Chapman Drive and then fly down Flagstaff.
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This loop is mostly easy with a few techy sections thrown in: Just enough to keep you on your toes.
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Eldorado Springs offers a wide variety of mountain biking experiences, with over 90 trails to explore. These routes cater to different skill levels, including 34 easy, 47 moderate, and 13 difficult trails.
Yes, the Rattlesnake Gulch Trail is the only trail within Eldorado Canyon State Park that permits mountain bikes. This challenging 'lollipop' trail features a steep climb and rewards riders with stunning views of Eldorado Canyon and the Continental Divide.
Yes, accessing trails within Eldorado Canyon State Park, including the Rattlesnake Gulch Trail, requires a state park pass. Additionally, timed-entry reservations are necessary on weekends and holidays from May 1 to October 1.
The terrain around Eldorado Springs is diverse, ranging from challenging climbs with loose soil and significant elevation gains to more moderate paths through open grasslands. You'll encounter towering sandstone cliffs, winding creeks, and expansive views, with options for both technical sections and smoother rides.
Yes, there are 34 easy mountain bike trails around Eldorado Springs. A good option for a less strenuous ride is the Community Ditch Trail loop from Superior, which is an easy 6.9 km route with minimal elevation gain.
Parking is available at various trailheads. For routes like the Marshall Mesa loop via Dowdy Draw Trail, you can typically find parking at the Dowdy Draw trailhead. Other popular trail systems like Marshall Mesa and Spring Brook Loop also have designated parking areas. Always check local regulations for specific trailhead parking.
Eldorado Springs itself has limited public transport options directly to trailheads. However, the wider Boulder area, which connects to many mountain biking networks, is served by RTD bus routes. Some of these buses are equipped with bike racks, making it possible to reach certain trail access points, such as those for Marshall Mesa.
Many trails offer spectacular scenery. The Rattlesnake Gulch Trail provides breathtaking views of Eldorado Canyon and the Continental Divide. Other routes, like the Marshall Mesa loop via Dowdy Draw Trail, offer expansive vistas across the plains and towards the foothills. You might also encounter highlights such as the Continental Divide Overlook or Davidson Mesa Overlook.
The area is highly rated by the komoot community, with an average score of 4.6 stars from over 40 reviews. Riders frequently praise the dramatic landscapes, the diverse terrain, and the rewarding views of the Continental Divide and sandstone cliffs. The mix of challenging climbs and scenic paths is also a highlight for many.
Yes, loop trails are a popular option in the Eldorado Springs area. Examples include the Marshall Mesa loop within Boulder Open Space and Mountain Parks, and the Spring Brook Loop from Eldorado Springs, offering circular routes for varied experiences.
The shoulder seasons (spring and fall) generally offer the most pleasant conditions for mountain biking in Eldorado Springs, with cooler temperatures and vibrant scenery. Summer can be hot, especially at lower elevations, so early mornings or late afternoons are often preferred. Winter riding is possible on some trails, but conditions can vary with snow and ice, so checking local trail reports is essential.
Dog policies vary by specific trail and land management agency. While some trails in the wider Boulder Open Space and Mountain Parks system may allow dogs, often on leash, it's crucial to check the specific regulations for each trail you plan to ride. Eldorado Canyon State Park has its own rules regarding pets.
The Eldorado Springs area is rich in wildlife. While mountain biking, you might spot mule deer, various bird species including golden eagles, and occasionally foxes. Less common but present are mountain lions and black bears, so it's always wise to be aware of your surroundings and practice wildlife safety.


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