Before you go, be sure to check out these running resources.

If you are heading to the local trails during the spring and fall, in particular, be sure to be up to date on the local temporary trail closures which tend to usually include South Boulder trails like Marshall Mesa and Dowdy Draw and in North Boulder, trails like the Eagle trail which tend to get very wet and sticky with mud. Even when they are not closed, remember its a good idea to be prepared to be wet by staying on the trail vs, making the trail wider.

Boulder Open Space and Mountain Parks

Most trails are managed by Boulder's OSMP or Open Space and Mountain Parks. You can find updated trail conditions as well other important stuff in the parks by following their twitter feed @BoulderOSMP.

You can find more about everything on their Visitor Information page.

Running with a Dog

OSMP lands have approximately 145 miles of trails, almost 90 percent of which are open to dogs. It is your responsibility as a dog guardian to read and understand the regulations so that everyone can enjoy their visit to OSMP. In some areas, dogs must be leashed. In other areas, dogs may be allowed off-leash if they wear a voice and sight tag and are under voice and sight control. All dogs must be leashed at the trailheads.

Running Trails in Boulder, CO

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Royal Arch Trail Reopens Again

Volunteers help rebuild the Royal Arch Trail Photo courtesy of The City of Boulder’s Open Space and Mountain Parks (OSMP) Depa...

Anemone Trail closed for construction

Starting on Monday, July 7, the Open Space and Mountain Parks (OSMP) Department will begin a trail project that will extend the Anemone Trail west...
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Snow and mud will close trails Tuesday

Open Space and Mountain Parks to close numerous trails because of snowy and muddy conditions The City of Boulder’s Open Space and Mountain Parks (O...

More Muddy Trail Closures March 7

Trailheads and Trails closed because of muddy conditions effective March 7, 2014 OSMP has closed the trailheads and trails listed below because o...

OSMP is hiring for Trail Crew positions

The City of Boulder, Colorado Open Space and Mountain Parks (OSMP) is seeking applications for seasonal Trails Crew Lead and Trails Crew Member positions for the 2014 field season. OSMP provides a great opportunity to work on an extensive mountain and plains trail system for people seeking a challenging and engaging trail crew work opportunity.

Upper Big Bluestem trail reopens

The opening of the re-routed Upper Big Bluestem Trail comes about eight months after OSMP crews began work to re-align the trail away from important stream corridors that provide habitats for black bears and other species.