Fourmile Canyon (Boulder Canyon to Poorman)
Fourmile Canyon (Boulder Canyon to Poorman)
Highlight (Segment) • Canyon
Fourmile Canyon (Boulder Canyon to Poorman)
Cycling
5.0
(11)
Gravel riding
5.0
(3)
Road cycling
5.0
(2)
Tips
October 26, 2023
Cycling
In the know? Log-in to add a tip for other adventurers!
Sign up for free
Nearby routes
Best routes near Fourmile Canyon (Boulder Canyon to Poorman)
5.0
(2)
165
riders
37.2km
03:27
1,040m
1,040m
The Gold Hill via Fourmile and Sunshine Canyons touring cycling route offers a dynamic experience through canyons and subalpine forests, culminating in the historic mining town of Gold Hill. You'll wind through diverse terrain, from paved sections to significant unpaved and dirt roads, enjoying panoramic vistas of the Rocky Mountains and glimpses of the Indian Peaks from Sunshine Canyon. This difficult 23.1 miles (37.2 km) loop, with its 3398 feet (1036 metres) of elevation gain, is a local favorite for its challenging ascents and rewarding descents.
Planning for this ride means preparing for a serious workout; the intense climbing up Fourmile Canyon, in particular, demands "requires legs of steel." You'll want wider tires, 32 millimeters or more, and low gears to handle the steep, sometimes rough and rocky, sections comfortably. The estimated duration is around 3 hours and 27 minutes, so pack enough water and snacks for a sustained effort.
What makes this route truly stand out is its blend of natural beauty and historical significance. The quaint, historic mining town of Gold Hill, largely preserved since 1859, provides a unique backdrop and a perfect spot to refuel at the Gold Hill General Store. This loop also serves as a gateway to more extensive adventures, with options to connect to other routes like the Switzerland Trail or the Peak-to-Peak Highway.
5.0
(1)
61
riders
19.2km
01:30
390m
390m
Embark on the Sunshine Canyon to Fourmile Canyon loop via Poorman Hill Road, a moderate touring bicycle route that offers a challenging yet rewarding experience. This 12.0-mile (19.2 km) journey includes 1270 feet (387 metres) of elevation gain, typically completed in about 1 hour and 30 minutes. As you cycle, you will pass through varied scenery, including dense woods and rugged rock outcroppings, with lovely views of the Indian Peaks unfolding before you. Keep an eye out for wildflowers blooming in the summer months, adding vibrant color to your ride.
When planning your visit, be aware that this route is considered moderate to hard, demanding good fitness due to its significant climbing sections. The terrain is mixed, featuring both paved and unpaved surfaces. Some parts of Sunshine Canyon and Poorman Road are particularly steep and can be washboarded, so prepare for varied conditions. While some sections might be manageable on a road bike, a mountain or gravel bike is highly recommended to comfortably handle the diverse surfaces you will encounter.
This classic Boulder ride showcases diverse landscapes, including views of Mount Sanitas as you head back towards town. You will also observe sections that still bear the marks of the 2010 Fourmile Canyon fire, offering a poignant reminder of nature's power and resilience. The route provides a unique opportunity to connect with the local environment and its history, making it a notable touring cycling option in the Boulder Open Space and Mountain Parks area.
5.0
(1)
190
riders
47.6km
03:33
1,020m
1,020m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Details
Informations
Distance 2.93 km
Uphill 170 m
Downhill 60 m
Weather
Powered by Foreca
Today
Thursday 6 August
31°C
15°C
0 %
Additional weather tips
Max wind speed: 15.0 km/h
Most visited during
January
February
March
April
May
June
July
August
September
October
November
December