The Midpeninsula Regional Open Space District is a regional greenbelt system in the San Francisco Bay Area comprised of over 60,000 acres of land in 26 open space preserves.

What's new?

Final Design Options for the Mount Umunhum Summit Project approved!

Check out the Fall 2015 edition of our newsletter Open Space Views.

Enjoy a self-guided, multi-media nature tour at Skyline Ridge OSP!

Major and notable projects and milestones are highlighted in the 2014-15 Accomplishments Report.

The new Ancient Oaks Trail Extension at Russian Ridge OSP is now open!

See the award winning photos from the 2015 Photo Contest.

Upcoming Activities

September 5, 2015
September 6, 2015
September 8, 2015