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Boulder Canyon Trail
Boulder Canyon Trail

Boulder Canyon Trail

The Boulder Canyon Trail is closed from the mouth of Boulder Canyon to the top of the trail at Fourmile Canyon. Eastbound cyclists need to merge with CO 119 traffic through this area. Westbound cycling is prohibited. The trail is closed until further notice. Learn more about CO 119 Boulder Canyon Improvements.

The Boulder Canyon Trail is a 1.9 mile trail that follows along Boulder Creek. The trail connects with the Boulder Creek Path into Boulder.

Boulder Canyon TrailHiking Allowed Dogs Allowed Bikes Allowed E-bikes Prohibited Horses Allowed
1.9 miles – Easy

Boulder Canyon Trail Closure

Parking Areas

There are several informal parking areas located along SH 119/Boulder Canyon Drive.

Boulder Creek Path

The Boulder Canyon Trail connects with the Boulder Creek Path that is managed by the City of Boulder.

Future Trail Extensions

Boulder County Transportation, in partnership with the City of Boulder and Colorado Department of Transportation (CDOT), will extend the Boulder Canyon Trail further west along SH 119/Boulder Canyon Drive. CDOT will complete the work as part of their 2019 reconstruction of SH 119 between Boulder and Nederland.

The extension will result in a 10-foot wide trail from the current terminus near Fourmile Canyon Drive west to Chapman Drive, including a potential grade-separated connection to Fourmile Canyon Drive and the Betasso Preserve open space. The trail extension will improve safety for cyclists, pedestrians and motor vehicles traveling in Boulder Canyon.

Work begins in May 2019 and plans to be open March 2020.

Learn more about the Boulder Creek Path Extension Project.

Boulder Canyon Trail Area

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5201 St. Vrain Rd.
Longmont, CO 80503
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Office Hours: 8 a.m. - 4:30 p.m. M-F

Parks are open sunrise to sunset

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