Open Space and Mountain Parks
Boulder's Open Space and Mountain Parks (OSMP) are a very special place. The open space lands teem with native plants and wildlife and are home to threatened and endangered species. They serve as a buffer between Boulder and nearby development. They sustain agriculture uses and add untold benefits to the natural environment - clean air, water, and earth.
The lands shape the urban mosaic of the Boulder Valley and provide residents with passive recreation opportunities. Trails are used by walkers, hikers, bicyclists, horseback riders, dog walkers and other passive recreational uses.
How do you want to enjoy Boulder’s open space in the future?
Tell us how you would like to recreate and steward Boulder’s open space over the next decade and beyond through our online questionnaire by midnight, Tuesday Nov. 20. Your input will establish priorities for the Open Space and Mountain Parks Master Plan’s “Responsible Recreation, Stewardship and Enjoyment” focus area.
Trail closures related to Xcel transmission line work: The Bear Canyon Trail west of the Mesa Trail is closed while Xcel Energy continues work to replace electric transmission line infrastructure on city-owned open space and utility lands. This long-term trail closure will be in effect 24 hours a day and is expected to continue through November, weather permitting. There are several other trail closures south and east of the National Center for Atmospheric Research. Details can be found at osmpprojects.org.
- Muddy trail closures as of Nov. 19: Trails in the Marshall Mesa, Greenbelt Plateau, Flatirons Vista, Doudy Draw and Springbrook areas, and the Left Hand Trail from Boulder Valley Ranch to Neva Rd are closed because of muddy conditions. View more information about the muddy trail closures.
- NCAR-Bear Canyon Trail: Closed M-F from Stony Hill access to NCAR-Bear Connector beginning Sept. 27
- East Boulder/White Rocks Trail bridge closed
Integrated Site Projects: OSMP is currently developing Integrated Site Projects (ISPs) for several specific OSMP locations, including the Wonderland Lake area and OSMP's Gebhard property on the South Boulder Creek corridor southeast of the East Boulder Community Center. Learn more about the ISPs.
OSMP administrative offices have moved: The offices relocated to 2520 55th St. in Boulder.
Eldorado Canyon to Walker Ranch Connection Feasibility Study: The findings of a feasibility study and a preliminary recommendation for a preferred trail alignment between Walker Ranch Open Space and Eldorado Canyon State Park will be presented from 5:30 to 7:30 p.m., Nov. 28. This meeting will be held at City of Boulder Open Space and Mountain Parks 2520 55th Street, Boulder. Learn more.
Purchase OSMP annual parking permits online: Visitors whose vehicles are registered outside of Boulder County can now purchase OSMP annual parking permits online. Learn more about parking permits.
Featured Projects & Pages
OSMP is committed to working with other city departments, Boulder County and other partner agencies to advance regional trail connections.
OSMP is developing Integrated Site Projects (ISPs) for several specific OSMP locations, including OSMP's Gebhard property and the Wonderland Lake area.
Information on how to register for the Voice and Sight Tag Program or renew your dogs' Voice and Sight Tags for 2019.
Learn about the OSMP Master Plan, what we've heard from the community so far, what's ahead and how you can get involved.
OSMP administrative offices have relocated to 2520 55th St. in Boulder. View more information and see regular office closures.
Open Space and Mountain Parks provides free environmental education programs for schools and community groups. Learn more and request a program.
Interactive Trail Map