4.7
(34)
2,013
riders
6
rides
Road cycling in Eldorado Canyon State Park offers diverse terrain characterized by towering sandstone cliffs, the meandering South Boulder Creek, and a transition zone where grasslands meet the Front Range foothills. The park provides a range of no traffic road cycling routes, from relatively easy, paved surfaces to more challenging climbs with significant elevation gain. Cyclists can experience scenic routes with views of the Flatirons and the surrounding mountains, including the Continental Divide from certain vantage points. The area's geologyβ¦
Last updated: July 10, 2026
22
riders
11.5km
00:39
260m
260m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
4
riders
Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.

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4
riders
6.39km
00:18
90m
90m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
5.0
(1)
87
riders
49.5km
03:03
1,250m
1,250m
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.
5.0
(1)
88
riders
35.6km
02:22
1,120m
1,120m
Embark on a challenging road cycling adventure from Flagstaff Mountain to Gross Reservoir, a difficult route spanning 22.1 miles (35.6 km). You'll gain a significant 3677 feet (1121 metres) ofβ¦
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
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Popular around Eldorado Canyon State Park
The Bear Creek Greenway meanders along the creek for many miles. It offers a paved trail lined with trees beside the water, with residential backyards on the opposite side.
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At the top of the hill, you'll discover fantastic views of the surrounding mountains. Enjoy the added bonus of scenic views of the Flatirons and blooming spring wildflowers.
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If you're looking for an excuse to pull over for a minute β or just a nice patch of nature on your ride β Maxwell Lake Park fills the bill. It has a small lake and an unpaved walking path (so you'll need to put your bike away when you walk around it).
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This section of trail takes you along a paved route through a tunnel of trees by the golf course and Empson Ditch (Skunk Creek).
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The trail follows the creek for many miles. The trail is paved and lined with trees by the water. You run past residential backyards on the non-creek side.
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There is a small playground here with a picnic table and bench. There are some nice paved paths through landscaped residential areas just south of here.
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There is crushed gravel parking lot here with access to a wide, flat, scenic trails. You can take the paved South Boulder Creek Trail or continue straight from the parking lot to hit the crushed gravel trails which wind down by the creek itself.
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The park here has bathrooms, sports fields, and fantastic views of the Flatirons. From here you can easily connect with the South Boulder Creek Trail.
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There are 7 dedicated no-traffic road cycling routes in and around Eldorado Canyon State Park featured in this guide. These routes offer a range of experiences, from easy spins to challenging climbs, all designed to minimize vehicle encounters.
The best time for road cycling in Eldorado Canyon State Park is generally from spring through fall. Spring offers blooming wildflowers and pleasant temperatures, while fall provides cooler weather and beautiful foliage. Summers can be warm, so early morning or late afternoon rides are often preferred. Always check local weather conditions before heading out.
Yes, there is one easy route perfect for beginners or families looking for a relaxed ride. The NCAR Hill loop from Culinary School of the Rockies is a great option, offering a gentle introduction to the area's scenic beauty without significant traffic concerns. The Boulder Creek Path, a mix of concrete and finely crushed gravel, also provides a less congested alternative to the main road.
The routes vary significantly. While some offer relatively easy, well-paved surfaces, others feature challenging climbs with significant elevation gain. For example, the Flagstaff Road Scenic Drive β Gross Reservoir loop involves over 1200 meters of ascent. The road into Eldorado Springs itself includes a steady, uphill climb. Be prepared for varying surfaces if you venture beyond the main paved roads, as some areas within the town and park can turn to dirt or gravel.
As you cycle, you'll be treated to stunning views of the towering sandstone cliffs that frame the canyon. Some routes offer fantastic views of the surrounding mountains and even the Continental Divide. You might also pass by the tranquil South Boulder Creek. For specific points of interest, consider exploring the Ruins of the Crags Hotel or the scenic Eldorado Springs Drive.
Parking is available at various access points. Many routes, like the NCAR Hill β Shanahan Hill loop, start from locations like the Culinary School of the Rockies, which may offer parking. The park itself is day-use only, and specific parking regulations may apply, especially during peak times. It's advisable to check the Eldorado Canyon State Park website for current parking information and any required permits or fees before your visit.
Yes, several routes are designed as loops, allowing you to start and end at the same point. The Flagstaff Trail loop from University of Colorado Boulder is a moderate option, while the Flagstaff Road Scenic Drive β Gross Reservoir loop provides a more challenging circular ride.
The area is highly rated by the komoot community, with an average score of 4.8 stars. Reviewers often praise the breathtaking scenery, the rewarding climbs, and the opportunity to experience the dramatic landscapes of the canyon with reduced vehicle traffic. The variety of routes catering to different fitness levels is also frequently highlighted.
Eldorado Springs, located near the park, offers some amenities. While the park itself is day-use only and camping is not permitted, you may find facilities in the nearby town. Boulder, a short drive away, also provides a wide range of cafes, restaurants, and other services. It's always a good idea to carry sufficient water and snacks, especially on longer rides.
While Eldorado Canyon State Park is generally dog-friendly on designated hiking trails, specific regulations apply to cycling routes. Dogs are typically not permitted on bike paths or trails within the park unless explicitly stated. Always check the official park rules and signage regarding pets on cycling routes to ensure compliance and a pleasant experience for everyone.
Eldorado Canyon State Park is well-connected to Boulder's extensive trail system. Various bike paths, such as the Broadway bike path to Marshall Road, provide excellent approaches for cyclists riding from Boulder. This allows for longer rides that seamlessly integrate both urban and natural landscapes, extending your no-traffic cycling adventure.


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