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Marshall Mesa Trailhead

Marshall Mesa Trailhead

Tell us what you think! Help us create more open space connections and preserve local agriculture

Please take a little time to share your ideas to help Boulder ensure an inclusive open space future, with welcoming outreach and volunteer programming, and to help the community preserve and enjoy Boulder’s agricultural lands. Please provide your thoughts by midnight, Dec. 18. Your input will help identify strategies for the Open Space and Mountain Parks (OSMP) Master Plan, which will guide the management of Boulder's open space over the next decade and beyond. 


Just east of the intersection of Highway 93 and Marshall Road.

Please check for Trail & Area Closures.

Or view the  interactive trail map  (includes trail closures) and the  interactive wildlife closures map

You are responsible for knowing and complying with all closures and OSMP rules & regulations.

Open Space and Mountain Parks Master Plan

Open Space and Mountain Parks has kicked off a long-term effort to establish a community-supported plan that will guide the management of the community’s open space over the next decade and beyond. Learn more about the OSMP Master Plan.


Parking is available for cars and horse trailers, with a parking fee. Information on parking permits & fees.


Please keep your car doors locked and your car windows rolled up at all times while leaving your vehicle parked at OSMP trailheads. Also consider leaving important valuables at home or take them with you while visiting open space. To report suspicious activity please call City of Boulder Dispatch 303-441-3333 or Boulder County Dispatch 303-441-4444. For crimes in progress, call 911 immediately.


View Marshall Mesa Trail Map pdf

From the trailhead visitors may take the Marshall Valley Trail to the east or the Coal Seam Trail south. Marshall Mesa Trail (0.7 mi) connects Marshall Valley and Community Ditch Trail and a loop hike can be taken combining Marshall Valley, Marshall Mesa and Coal Seam trails, or Marshall Valley, Community Ditch and Coal Seam trails.

Cowdrey Draw Trail (0.8 mi) provides access to the east to the Mayhoffer-Singletree Trail that accesses Boulder County Parks and Open Space.

Community Ditch Trail provides access to the south to the Greenbelt Plateau Trail and to the west to the Doudy Draw area.


Available at the trailhead.


Three picnic tables available at the trailhead.


Bicycles are allowed on Marshall Valley Trail, Coal Seam Trail, Cowdrey Draw Trail, Greenbelt Plateau Trail, and Community Ditch Trail. Bicycles may be ridden only on those trails that are posted with the international bicycle symbol. Other bike trails on OSMP.


Marshall Mesa Area Dog Regulations Map

Learn about bringing your dog to OSMP. All dogs must be leashed in the Trailhead Leash Area. Beyond the trailhead, dog control requirements vary from trail to trail, so carefully watch for dog regulation signs at trailheads and trail intersections. On most OSMP trails in this area, dogs must be on a hand-held leash at all times unless they meet the voice and sight control standard and display a City of Boulder Voice and Sight tag. Dog excrement removal is required by law.


Horses are allowed on most trails. On-trail riding is encouraged to protect rare plants and wildlife habitat. Learn more about riding your horse on OSMP.


Birds of prey are frequently sighted in this area. Coyotes and mule deer are common.


Coal mining area in the 1860s. Mines after 1900. For a fascinating account of the coal mining at Marshall Mesa, download a copy of Joanna Sampson's brochure 'Walking through History on Marshall Mesa.' pdf

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