The best road cycling routes around Boulder

Embark on the Ward, Lefthand Canyon, and Lee Hill loop from Pearl Street for a challenging racebike adventure through Roosevelt National Forest. This difficult route spans 46.3 miles (74.5 km) and demands a significant effort, climbing 4391 feet (1338 metres) over an estimated 3 hours and 59 minutes. As you ascend, you will be rewarded with continuously improving views, including fantastic vistas looking east over the plains from Lee Hill and wide-open meadows showcasing the often snow-capped Indian Peaks.

This demanding ride requires very good fitness, so prepare accordingly before you set out. Be aware that early spring conditions can sometimes bring sand onto the roads, which might affect safety, especially on descents. The Lee Hill section of the route features narrow shoulders, so exercise caution and stay alert for wildlife, particularly deer, as you navigate the downhill stretches.

Beyond the physical challenge, this loop offers a unique experience, passing through the small mountain town of Ward. You can make a stop at its friendly General Store, providing a pleasant break and a glimpse into local life amidst the scenic mountain landscape. The journey itself is a testament to the diverse beauty of the region, from expansive plains views to alpine meadows.

Embark on the Jamestown via Old Stage, Lefthand Canyon, and Lee Hill Drive from Pearl Street loop, a challenging road cycling route that spans 28.6 miles (46.0 km). You will climb a significant 2855 feet (870 metres) over an estimated 2 hours and 30 minutes, making this a moderate yet rewarding ride. The route offers varied scenery, from the tree-covered mountains of Lefthand Canyon, where you follow Lefthand Creek, to the expansive views over northeast Boulder from Old Stage Road.

When planning your ride, be aware that this route uses shared roads with moderate car traffic. Exercise caution, especially when navigating blind corners and during fast descents, to ensure your safety. You should also keep an eye out for wildlife, particularly deer, which are often seen in Lefthand Canyon and along Old Stage Road. For a convenient break, the Jamestown Mercantile Café provides a good spot for refreshments midway through your journey.

This loop takes you through parts of the Boulder Open Space and Mountain Parks, offering a peaceful experience away from urban bustle. As you cycle through Lefthand Canyon, you will pass sections of the Arapaho and Roosevelt National Forest, immersing you in a natural environment. The combination of sustained climbs and scenic descents makes this a notable route for cyclists seeking both a workout and beautiful surroundings in the region.

Embark on the Jamestown via Olde Stage and Highway 36 loop, a moderate racebike route that offers a rewarding challenge near Boulder, Colorado. You will cover 31.3 miles (50.4 km) and climb 2264 feet (690 metres) of elevation, typically taking around 2 hours and 27 minutes to complete. As you cycle, you will experience diverse scenery, from the expansive vistas over northeast Boulder found on Olde Stage Road to the serene, tree-covered mountains flanking Lefthand Canyon.

This popular route is generally accessible year-round, though you should always check current conditions as they can change with the seasons. While vehicular traffic is often accustomed to sharing the road with cyclists, staying vigilant is always a good practice. For a convenient stop, you can find refreshments and water refills at the Jamestown Mercantile Café, a traditional and welcoming spot along the way.

This classic ride takes you through parts of Roosevelt National Forest, providing a true escape into nature. The route winds alongside Lefthand Creek, where you might even spot some local wildlife amidst the scenic backdrop. A highlight of the journey is the charming mountain town of Jamestown, offering a pleasant break and a glimpse into local life.

This difficult racebike loop from Pearl Street takes you on a challenging 72.9 miles (117.2 km) journey. You will climb 2565 feet (782 metres) over an estimated 5 hours and 13 minutes, making it a demanding ride. As you cycle, you'll experience diverse terrain with the Rocky Mountains always in view. The route passes by several lakes and charming farms, offering glimpses of Haystack Mountain and the surrounding foothills. Make sure to pause at the Carter Lake Overlook for expansive views stretching eastward over the plains.

This long and difficult ride requires very good fitness, so plan your preparation accordingly. You should carry adequate water and snacks, as options for resupply are limited between Boulder and Carter Lake. Consider starting early to make the most of the daylight and avoid peak traffic. Unlocked public bathrooms might be available at Carter Lake South Shore Campground, which can be a useful stop.

The Hygiene and Carter Lake loop is a popular choice among local cyclists due to its varied landscape and consistent mountain backdrop. You will encounter a mix of open plains and rolling hills, providing a dynamic cycling experience. This route offers a great way to explore the region's natural beauty, combining agricultural scenery with impressive mountain vistas, making it a notable challenge for road biking enthusiasts.