5.0
(2)
25
riders
3
rides
Gravel biking around Coal Creek in Colorado features a network of trails characterized by varied terrain, from wide, smooth gravel paths to more challenging routes with significant elevation changes. The region offers expansive views of the foothills and mountains, including vistas of Gross Reservoir. Trails often traverse open landscapes, connecting towns like Superior, Louisville, and Lafayette, and can include both soft-surface and hard-packed sections.
Last updated: June 1, 2026
5.0
(1)
11
riders
19.3km
01:40
370m
370m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
7
riders
26.2km
01:34
300m
300m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Sign up for free
5.0
(1)
5
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
15.4km
01:21
240m
240m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Start today with a free account
Your next adventure awaits.
Login or Signup
Country Road 126 is a dirt-packed road that serves as a roadway for cars, a double track for bikers, and a trail for walkers. The road goes through pine trees, birch trees, and under power lines.
0
0
There is a sizeable parking lot here with restrooms. From here you can access the network of nontechnical wooded trails and roads in Mud Lake Open Space.
0
0
There is a large packed gravel lot here with restrooms and access to numerous dirt roads and singletrack trails.
0
0
Gross Dam Road is a mostly-smooth, hard-packed gravel road that connects Flagstaff Road to Coal Creek Canyon Highway. This scenic road sees very little traffic and there are great marked scenic overlooks along the way. Although the road is generally pretty moderate in grade, there are a few moments of 12-15% gradients to get your heart rate up if ascending the road from Coal Creek Highway.
0
0
Gross Reservoir is a large lake on the other side of Flagstaff Mountain. There is a hard-packed gravel road on it's eastern shore which is a great place to snap a few photos after the tough climb up Super Flag and long descent down. If you are unwilling to take you bike on gravel, however, you still get great views of the reservoir and the surrounding area at the junction on the pavement.
0
0
The Moffat Tunnel is a railroad and water tunnel that cuts through the Continental Divide in north-central Colorado (https://en.wikipedia.org/wiki/Moffat_Tunnel). There is also a parking lot here for people wanting to hike in the area.
0
0
There's a sewing machine on top of a post. If that's not a highlight, I'm not sure what is.
0
0
The Coal Creek area in Colorado offers a diverse range of gravel biking terrain. You'll find mostly wide, smooth, fine gravel paths, particularly around Broomfield and Superior, which are non-technical, flat, and fast. Other routes, like those leading to Gross Reservoir, can feature challenging grades of 12-15% and more mountainous terrain. Many trails also include paved sections and soft-surface paths.
Yes, several areas are well-suited for beginners. The Coal Creek and Dry Creek Trails network near Broomfield/Superior, and the Coal Creek/Rock Creek Gravel Loop in Boulder County, are known for their non-technical, flatter terrain, making them ideal for those new to gravel biking. Routes like the Nederland – Country Road 126 loop from Nederland and the Public toilet in Rollinsville – Tolland loop from Rollinsville are rated as moderate and offer consistent gravel surfaces suitable for a steady ride.
The difficulty varies significantly. While many trails are beginner-friendly with smooth, flat gravel, some routes present a considerable challenge. For instance, the Gross Reservoir – Walker Ranch Loop Trailhead loop from First Baptist Church is rated as difficult, featuring significant climbs and mountainous terrain. Routes in areas like Coal Creek Canyon to Flagstaff can also include challenging grades of 12-15%.
You'll encounter expansive views of the foothills and mountains, including vistas of Gross Reservoir, especially on routes in the Colorado region. The area also boasts several notable peaks and viewpoints. You can find highlights such as Continental Divide Overlook, Green Mountain Peak, and the iconic First and Second Flatirons Trail.
While the Colorado gravel trails focus more on natural landscapes, the Coal Creek Natural Area in Bellevue, Washington, offers an extensive trail system where you can discover historic coal mining sites with informative fact cards. This area provides a glimpse into the region's past alongside its natural beauty.
Yes, if you venture to the Coal Creek Natural Area in Bellevue, Washington, you can find the charming Coal Creek Falls. These falls are most impressive after significant rainfall. While this area is primarily known for hiking, it offers a beautiful natural feature to explore.
Parking is generally available at trailheads and designated access points for the various Coal Creek gravel trails. Specific parking details can vary by location, so it's advisable to check the starting point of your chosen route for the most accurate information.
Public transport options exist for accessing some Coal Creek trails, particularly in Boulder County, Colorado. The Coal Creek Trail from Superior to Erie is a regional trail that connects to various other trails and parks, and public transport links are available in the surrounding towns. For specific routes, it's best to check local transit schedules.
Many sections of the Coal Creek trail network are very family-friendly, especially the flatter, non-technical routes in areas like Broomfield/Superior and Boulder County, Colorado. These wide, smooth gravel paths are suitable for riders of all ages and skill levels, offering a pleasant experience for families.
Dog policies vary by specific trail and jurisdiction. In Boulder County, for example, dogs are generally permitted on trails like the Coal Creek Trail, often requiring leashes. It's always recommended to check the specific regulations for the trail you plan to ride to ensure compliance.
The Colorado Coal Creek trails are enjoyable for much of the year. Spring and fall offer pleasant temperatures and vibrant scenery. The non-technical, fine gravel trails in areas like Broomfield/Superior are also good options for riding in wet weather when other trails might be too muddy. Winter riding is possible, but conditions can vary, with some trails potentially experiencing snow or ice.
The gravel trails in Colorado often connect to or pass near towns like Superior, Louisville, and Lafayette. These towns offer various amenities, including cafes, pubs, and restaurants where you can refuel after your ride. For routes in Coal Creek Canyon, options might be more spread out, so planning ahead is recommended.
The komoot community highly rates the gravel biking experience around Coal Creek, with an average score of 5.0 stars. Riders frequently praise the diverse terrain, from smooth, fast sections to challenging climbs, and the stunning mountain and foothill views. The ability to connect different towns and explore varied landscapes is also a popular highlight.


Browse the best Gravel rides in other regions.