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.
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. Our first "window of engagement" for the Master Plan began on Monday, Jan. 22. Share your comments. Our first "window of engagement" will close on Friday, March 30.
Current Trail/Trailhead Closures
- Towhee and North Fork Shanahan Trails closed: Xcel work in the area has temporarily closed these trails.
- Red Rocks and Anemone Trails closed
- East Boulder/White Rocks Trail bridge closed
- Boulder Falls Trail closed: Starting as early as Monday, Feb. 12, OSMP will begin work to repair Boulder Falls.
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
Natural Selections are free, educational nature programs on topics including ecology, wildlife, local history, night hikes, children’s programs, and more.
Open Space and Mountain Parks Rangers work to protect the trails and rich and diverse public landscapes here in Boulder.
Information on how to register for the Voice and Sight Tag Program or renew your dogs' Voice and Sight Tags for 2018.
Visitors whose vehicles are registered outside of Boulder County can now purchase OSMP annual parking permits online. Learn more about parking permits.
View the winning entries from the 2017 OSMP Photo Contest.