Open Space and Mountain Parks
Boulder's Open Space & 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 citizens with passive recreation opportunities. Trails are used by walkers, hikers, bicyclists, horseback riders, dog walkers and other passive recreational uses.
- North TSA Expert Panels: OSMP and the Open Space Board of Trustees will host two panels on Aug. 26 and Sept. 2 to hear from experts about how solutions used elsewhere can be integrated into the North Trail Study Area (TSA) Plan. Visit NorthTSA.org to learn more about the plan.
- Several trails are closed for longer-term projects: Please see the temporary closures page for details on the following closures:
- East Boulder/White Rocks Trail bridge closed
- Boulder Falls Trail closed
- Anemone Hill closed - a portion of the trail is temporarily open for out and back use only
Featured Projects & Pages
OSMP is working on the North Trail Study Area (TSA) Plan. Learn more about the plan and how you can participate in the process.
OSMP is working on the Agricultural Resources Management Plan. Learn more about the plan.
To let your dogs walk off-leash on Boulder open space trails in 2015, you must first take a Voice and Sight education class.
Information and instructions to obtain wood that is available to the public and a calendar showing wood availability.
OSMP is working with NIST to designate a trail system for visitor access and use in the NIST Protected Area.